raw_S_progarchives.csv

artist,genre,country
S VREMENA NA VREME,Prog Folk,Yugoslavia
S&L,Heavy Prog,Italy
S.O.T.E. (SONGS OF THE EXILE),Heavy Prog,Netherlands

S91,Progressive Metal,Italy

SAAGARA,Indo-Prog/Raga Rock,India
SAAL HARDALI,RIO/Avant-Prog,Israel
ILP AASTAMOINEN,Prog Folk,Finland

SAB,Progressive Electronic,Japan
SACCHARINE TRUST,Eclectic Prog,United States

SACKA,Rock Progressivo Italiano,Italy
SACRIFICE TO SURVIVE,Progressive Metal,United States

SACRUM,Progressive Metal,Argentina
SAD MINSTREL,Prog Folk,Italy
SADDAR BAZAAR,Indo-Prog/Raga Rock,United Kingdom

SADDLEBACK,Post Rock/Math rock,Australia

SADGAYERS,Post Rock/Math rock,United States

SADIST,Tech/Extreme Prog Metal,Italy
SADISTIC MIKA BAND,Prog Related,Japan
JASO ADITES,Jazz Rock/Fusion,Canada

SADJA,Indo-Prog/Raga Rock,Germany
MICHAE ADLER,Crossover Prog,Canada
SADMAN INSTITUTE,Progressive Metal,Poland

SADO,Crossover Prog,Uzbekistan
KRZYSZTO ADOWSKI AND HIS GROUP,Jazz Rock/Fusion,Poland
SAECULA SAECULORUM,Symphonic Prog,Brazil
SALIM GHAZ AEEDI,Crossover Prog,Iran
SAELIG OYA,Heavy Prog,France

SAENA,Symphonic Prog,Mexico

SAENS,Neo-Prog,France
TH AFETY FIRE,Progressive Metal,United Kingdom

SAFFRAN,Crossover Prog,Germany

SAFIYYA,Progressive Electronic,United States

SAFT,Crossover Prog,Norway

SAGA,Psychedelic/Space Rock,Sweden

SAGA,Crossover Prog,Portugal

SAGA,Crossover Prog,Canada

SAGA,Symphonic Prog,Netherlands
SAGA DE RAGNAR LODBROCK,Prog Folk,France

SAGITTARIAN,Neo-Prog,Japan
SAGRADO CORAÇĂO DA TERRA,Symphonic Prog,Brazil

SAGRAM,Indo-Prog/Raga Rock,United Kingdom

SAHARA,Eclectic Prog,Germany
CHARL AHONA,Progressive Metal,France
SAIGA ANTELOPE,Crossover Prog,Norway
TH AILING,Crossover Prog,United States
SAILOR FREE,Heavy Prog,Italy
SAĎNO,Jazz Rock/Fusion,France
SAINT JUST,Prog Folk,Italy

SAIREN,Post Rock/Math rock,France

SAJJANU,RIO/Avant-Prog,Japan

SAKRE,Prog Folk,Spain
MOTO AKURABA,Neo-Prog,Japan
SAL Y MILETO,Experimental/Post Metal,Ecuador

SALAIVA,Jazz Rock/Fusion,Finland

SALAMANDER,Proto-Prog,United Kingdom

SALANDER,Crossover Prog,United Kingdom

SALARYMAN,Post Rock/Math rock,United States
SALEM HILL,Neo-Prog,United States
SALES DE BAŃO,RIO/Avant-Prog,Argentina

ALICI,Crossover Prog,Italy

SALIS,Rock Progressivo Italiano,Italy
SALLE GAVEAU,RIO/Avant-Prog,Japan
TH ALLYANGIE,Prog Folk,United Kingdom
SALMA GANDHI,Psychedelic/Space Rock,Sweden
SALMAGÜNDI,RIO/Avant-Prog,Italy

SALMO,RIO/Avant-Prog,France

SALMON,Symphonic Prog,Netherlands

SALUKI,Jazz Rock/Fusion,Norway

SALVA,Crossover Prog,Sweden

SALVATORE,Post Rock/Math rock,Norway

SALVICTION,Experimental/Post Metal,Poland
SAM (SLICK ALEXIUS MENNIGMANN),Jazz Rock/Fusion,Germany

SAMADHI,Rock Progressivo Italiano,Italy
SAMANOVO ZBOZI,Crossover Prog,Czech Republic

SAMETI,Krautrock,Germany
SAMLA MAMMAS MANNA,RIO/Avant-Prog,Sweden

SAMMAL,Psychedelic/Space Rock,Finland
SAMMATH NAUR,Tech/Extreme Prog Metal,Poland

SAMMELSURIUM,Crossover Prog,Germany

SAMSARA,Rock Progressivo Italiano,Italy
SAMSARA BLUES EXPERIMENT,Psychedelic/Space Rock,Germany
TH AMUEL JACKSON FIVE,Post Rock/Math rock,Norway

SAMURAI,Crossover Prog,United Kingdom
TH AMURAI OF PROG,Crossover Prog,Multi-National
RODRIG AN MARTIN,Crossover Prog,Argentina
SAN PEDRO'S VISION,Psychedelic/Space Rock,United Kingdom
DAVI ANCIOUS,Jazz Rock/Fusion,United States

SAND,Krautrock,Germany
SAND SNOWMAN,Crossover Prog,United Kingdom

SANDCASTLE,Heavy Prog,Italy
DOMINI ANDERSON,Eclectic Prog,United Kingdom

SANDROSE,Symphonic Prog,France

SANDSTONE,Progressive Metal,Poland

SANGIULIANO,Progressive Electronic,Italy
SANGRE DE MUERDAGO,Prog Folk,Spain
SANGUINE HUM,Neo-Prog,United Kingdom

SANHEDRIN,Eclectic Prog,Israel

SANITY,Progressive Metal,Netherlands
SANKT OTTEN,Progressive Electronic,Germany

SANNHET,Experimental/Post Metal,United States
SANTA SABINA,Crossover Prog,Mexico

SANTANA,Jazz Rock/Fusion,Multi-National
CARLO ANTANA,Jazz Rock/Fusion,Mexico
GUSTAV ANTHIAGO,Symphonic Prog,Brazil

ANTONI,Crossover Prog,Italy

SANVOISEN,Progressive Metal,Germany

SAPAT,Psychedelic/Space Rock,United States

SAQQARAH,Neo-Prog,France
SARASTRO BLAKE,Crossover Prog,Italy

SARAX,Post Rock/Math rock,Chile

SARCASME,Heavy Prog,France
SARCOPHAGUS NOW,Eclectic Prog,Sweden

SARIS,Neo-Prog,Germany
SARLO AKROBATA,RIO/Avant-Prog,Yugoslavia

SARMAT,Tech/Extreme Prog Metal,United States

SARTORIUS,Heavy Prog,Mexico
YOSS ASSI,Crossover Prog,Israel

SATAN,Symphonic Prog,France
SATAN ALFA BEEL ATEM,Progressive Electronic,Japan
SATANIQUE SAMBA TRIO,RIO/Avant-Prog,Brazil

SATCHITANANDA,Jazz Rock/Fusion,United States
TH ATELITE,Post Rock/Math rock,Peru

SATELLITE,Neo-Prog,Poland
SATIN WHALE,Prog Related,Germany
SATISFACTION INJECTION,Jazz Rock/Fusion,Netherlands
MASAHIK ATOH AND THE SOUNDBREAKERS,RIO/Avant-Prog,Japan

SATURNALIA,Psychedelic/Space Rock,United Kingdom

SATURNIA,Indo-Prog/Raga Rock,Portugal

SATWA,Indo-Prog/Raga Rock,Brazil
SAULES LAIKRODIS,Crossover Prog,Lithuania

SAUNABADH,Psychedelic/Space Rock,Finland
SAVAGE LUCY,Post Rock/Math rock,South Africa
TH AVAGE ROSE,Prog Related,Denmark

SAVANNA,Psychedelic/Space Rock,Portugal

SAVATAGE,Progressive Metal,United States
SAVING THROW,Post Rock/Math rock,United States
SAVIOUR MACHINE,Progressive Metal,United States
DIONYSI AVVOPOULOS,RIO/Avant-Prog,Greece

SAWHORSE,Post Rock/Math rock,United States

SAWKEN,Psychedelic/Space Rock,Chile
SAXON SHORE,Post Rock/Math rock,United States

SAYER,Progressive Electronic,United States

SBB,Eclectic Prog,Poland
SC'ÖÖF,Zeuhl,Switzerland
SCALE THE SUMMIT,Progressive Metal,United States
JAIM CALPELLO,Crossover Prog,Chile
SCAPA FLOW,Prog Folk,Finland
SCAPELAND WISH,Neo-Prog,United States

SCAPHOID,Experimental/Post Metal,United States
TH CARAMANGA SIX,Crossover Prog,United Kingdom

SCARAMOUCHE,Symphonic Prog,Germany

SCARCITY,Experimental/Post Metal,United States

SCARDUST,Progressive Metal,Israel

SCARECREW,Krautrock,Germany
SCARED BUNNY,Psychedelic/Space Rock,Canada

SCARIOT,Progressive Metal,Norway
SCARLET HOLLOW,Heavy Prog,United States
SCARLET INSIDE,Crossover Prog,United Kingdom
SCARLET STORIES,Progressive Metal,Netherlands
SCARLET THREAD,Prog Folk,Finland
SCARLET UTOPIA,Psychedelic/Space Rock,Germany
SCATTERED PURGATORY,Krautrock,Taiwan

SCENARIO,Progressive Metal,Italy

SCENERY,Tech/Extreme Prog Metal,Czech Republic
SCENERY CHANNEL,Progressive Metal,Finland
JANN CHAFFER,Jazz Rock/Fusion,Sweden

SCHAMMASCH,Tech/Extreme Prog Metal,Switzerland

SCHEHERAZADE,Neo-Prog,Japan
JA CHELHAAS,Crossover Prog,United Kingdom
DANIE CHELL & KARO,RIO/Avant-Prog,Belgium
LUC CHERANI,Eclectic Prog,Italy
TO CHERPENZEEL,Crossover Prog,Netherlands

SCHERZOO,Zeuhl,France
SCHICKE & FÜHRS & FRÖHLING,Symphonic Prog,Germany
GÜNTE CHICKERT,Progressive Electronic,Germany
DO CHIFF,Jazz Rock/Fusion,United States
TITO JR CHIPA,Rock Progressivo Italiano,Italy

SCHIZOFRANTIK,Eclectic Prog,Germany
SCHIZOID LLOYD,Experimental/Post Metal,Netherlands

SCHIZOPHONIA,Crossover Prog,Switzerland

SCHLACHTVIEH,Krautrock,Germany

SCHLEIGHO,Jazz Rock/Fusion,United States
ART SPIK CHLOEMER,Jazz Rock/Fusion,United States
SCHLOSS TEGAL,Progressive Electronic,United States
IRMI CHMIDT,Prog Related,Germany

SCHNAUSER,Crossover Prog,United Kingdom

SCHNELLERTOLLERMEIER,RIO/Avant-Prog,Switzerland
CONRA CHNITZLER,Progressive Electronic,Germany
EBERHAR CHOENER,Progressive Electronic,Germany

SCHOENHERZ,Crossover Prog,Austria

SCHOLOMANCE,Tech/Extreme Prog Metal,United States
SCHÖNFELD,Jazz Rock/Fusion,United Kingdom
SCHOOL OF THE ARTS,Jazz Rock/Fusion,United States

SCHOOLTREE,Crossover Prog,United States
ROBER CHROEDER,Progressive Electronic,Germany
SCHROEDINGER'S CAT,Psychedelic/Space Rock,Germany

SCHTUNG,Crossover Prog,New Zealand
KLAU CHULZE,Progressive Electronic,Germany

SCHWARZ,Psychedelic/Space Rock,Spain
NERISS CHWARZ,Crossover Prog,Germany

SCHWARZARBEIT,Crossover Prog,Germany

SCHYSMA,Progressive Metal,Italy
TH CIENCE GROUP,RIO/Avant-Prog,Multi-National
SCIENCE IN THE CAVE,Post Rock/Math rock,United States
SCIENCE NV,Crossover Prog,United States

SCIENTIST,Experimental/Post Metal,United States
KRZYSZTO CIERANSKI,Jazz Rock/Fusion,Poland
SCISSOR SHOCK,RIO/Avant-Prog,United States

SCLERA,Tech/Extreme Prog Metal,Australia
NAT COBLE,Prog Folk,United States
JOH COFIELD,Jazz Rock/Fusion,United States

SCOPE,Jazz Rock/Fusion,Netherlands
SCORCH TRIO,RIO/Avant-Prog,Multi-National
SCORCHED SHORE,Experimental/Post Metal,United States
SCRAPS OF TAPE,Post Rock/Math rock,Sweden
SCREAMING EARTH,Crossover Prog,Poland
SCREAMING GYPSY BANDITS,Eclectic Prog,United States
SCREAMING HEADLESS TORSOS,Jazz Rock/Fusion,United States

SCROOGE,RIO/Avant-Prog,Austria

SCULPTOR,Tech/Extreme Prog Metal,Serbia

SCULPTURED,Tech/Extreme Prog Metal,United States

SCYTHE,Eclectic Prog,Germany

SDNMT,Post Rock/Math rock,Germany
SE DELAN,Crossover Prog,United Kingdom
SEA IN THE SKY,Progressive Metal,United States
TH EA LIKE LEAD,Post Rock/Math rock,United States
TH EA NYMPHS,Crossover Prog,United Kingdom
SEA OF NECTAR,Progressive Metal,Venezuela
SEA OF SKIES,Progressive Metal,United States
SEA VINE,Neo-Prog,Poland
TH EA WITHIN,Eclectic Prog,Multi-National
SEABROOK POWER PLANT,RIO/Avant-Prog,United States
SEALAND AIRLINES,Psychedelic/Space Rock,Ukraine

SEAMUS,Eclectic Prog,France
TH EASON STANDARD,Eclectic Prog,Germany
SEASONS OF TIME,Neo-Prog,Germany

SEAWORTHY,Post Rock/Math rock,Australia
SEBASTIAN HARDIE,Symphonic Prog,Australia
SEBKHA CHOTT,RIO/Avant-Prog,France
SECOND FAMILY BAND,Krautrock,United States
SECOND HAND,Psychedelic/Space Rock,United Kingdom
SECOND MOVEMENT,Symphonic Prog,Germany
L ECONDA GENESI,Rock Progressivo Italiano,Italy
SECONDS BEFORE LANDING,Crossover Prog,United States

SECONDSKIN,Experimental/Post Metal,United Kingdom
SECOS & MOLHADOS,Prog Folk,Brazil
SECRET CHIEFS 3,RIO/Avant-Prog,United States
SECRET CINEMA,Neo-Prog,Italy
SECRET GREEN,Prog Folk,United Kingdom
TH ECRET MACHINES,Psychedelic/Space Rock,United States
SECRET OYSTER,Jazz Rock/Fusion,Denmark
ECRET RIVER,Crossover Prog,Sweden
SECRET SAUCER,Psychedelic/Space Rock,United States
SECRET SOCIETY OF STARFISH,Progressive Metal,United States
SECRET TALES,Rock Progressivo Italiano,Italy

SECTILE,Progressive Metal,Ireland
SECTION 3B,Heavy Prog,Multi-National
SECTION A,Progressive Metal,Multi-National
SECTION IV,Crossover Prog,United Kingdom
SEDATE ILLUSION,Progressive Metal,Greece

SEDMINA,Prog Folk,Yugoslavia

SEED,Crossover Prog,Spain

SEEDOG,Krautrock,Germany
SEER'S TEAR,Progressive Metal,United Kingdom

SEESSELBERG,Progressive Electronic,Germany
YOCHK' EFFER,Zeuhl,France
I EGNO DEL COMANDO,Rock Progressivo Italiano,Italy
TH EGUE,Jazz Rock/Fusion,Poland

SEHNSUCHT,Psychedelic/Space Rock,Russia
SEI STILL,Krautrock,Mexico

SEID,Psychedelic/Space Rock,Norway

SEIKAZOKU,Krautrock,Japan
SEKKUTSU JEAN,Zeuhl,Japan

SELCOUTH,Experimental/Post Metal,Finland

SELDON,Rock Progressivo Italiano,Italy

SELECTRIC,Jazz Rock/Fusion,United Kingdom

SELVANS,Experimental/Post Metal,Italy
SEMANTIC SATURATION,Progressive Metal,Canada

SEMENTE,Psychedelic/Space Rock,Brazil

SEMI,Psychedelic/Space Rock,Japan

SEMIOSIS,Post Rock/Math rock,Romania

SEMIRAMIS,Rock Progressivo Italiano,Italy

SEMOOL,Krautrock,France
TON ENATORE,Jazz Rock/Fusion,United States

SENDELICA,Psychedelic/Space Rock,United Kingdom

SENECA,Heavy Prog,United States
KE ENIOR,Neo-Prog,United Kingdom

SENMUTH,Experimental/Post Metal,Russia

SENNEN,Post Rock/Math rock,Netherlands

SENOGUL,Eclectic Prog,Spain
SENSATIONS' FIX,Psychedelic/Space Rock,Italy
L ENSAZIONI,Rock Progressivo Italiano,Italy

SENSE,Crossover Prog,Canada
ENSE OF GRAVITY,Progressive Metal,United States

SENSES,Crossover Prog,United States
SENSITIVA IMMAGINE,Rock Progressivo Italiano,Italy
SENSITIVE TO LIGHT,Symphonic Prog,France
SENSUAL NOISE,Experimental/Post Metal,Belgium

SENTIENT,Psychedelic/Space Rock,United Kingdom
I ENTIERO DI TAUS,Rock Progressivo Italiano,Italy

SENTRYTURN,Progressive Metal,Germany
SENZA NOME,Rock Progressivo Italiano,Italy
SEPIA DREAMER,Experimental/Post Metal,Sweden

SEPSIS,Psychedelic/Space Rock,Russia

SEPTEMBER,Jazz Rock/Fusion,Yugoslavia
SEPTEMBER MALEVOLENCE,Post Rock/Math rock,Sweden

SEPUTUS,Tech/Extreme Prog Metal,United States
SEQUENCE PULSE,Post Rock/Math rock,Japan
SEQUENTIA LEGENDA,Progressive Electronic,France

SERDCE,Tech/Extreme Prog Metal,Belarus

SERENE,Symphonic Prog,Germany
SERGE RAMSES,Progressive Electronic,France
SERIOUS BEAK,Tech/Extreme Prog Metal,Australia

SERIS,Progressive Metal,United States

SERMON,Progressive Metal,United Kingdom
SERPENT COLUMN,Tech/Extreme Prog Metal,United States
SERPENTINA SATELITE,Psychedelic/Space Rock,Peru

SERPENTYNE,Prog Folk,United Kingdom
SERÚ GIRÁN,Prog Related,Argentina
SERVANTS OF SCIENCE,Crossover Prog,United Kingdom
GILLE ERVAT,Prog Folk,France

SESSION,Crossover Prog,Finland
SESSION VII,Progressive Metal,Canada
SET FIRE TO FLAMES,Post Rock/Math rock,Canada

SETENTIA,Tech/Extreme Prog Metal,New Zealand
SETH ANGERER,Progressive Metal,Austria

SETI,Neo-Prog,Chile

SETNA,Zeuhl,France

SEVEN,Experimental/Post Metal,United States
SEVEN DAY HUNT,Neo-Prog,Netherlands
SEVEN HORIZONS,Heavy Prog,Italy
SEVEN IMPALE,Eclectic Prog,Norway
SEVEN NAUTICAL MILES,Experimental/Post Metal,Sweden
SEVEN NINES AND TENS,Experimental/Post Metal,Canada
SEVEN PERCENT SOLUTION,Psychedelic/Space Rock,United States
SEVEN REIZH,Symphonic Prog,France
SEVEN SIDE DIAMOND,Crossover Prog,Brazil
SEVEN STEPS TO THE GREEN DOOR,Neo-Prog,Germany
SEVEN TEARS,Progressive Metal,Sweden
SEVEN THAT SPELLS,Psychedelic/Space Rock,Croatia
SEVENTH DIMENSION,Progressive Metal,Sweden
SEVENTH SONS,Indo-Prog/Raga Rock,United States
SEVENTH STATION,Progressive Metal,Slovenia
SEVENTH WAVE,Crossover Prog,United Kingdom
SEVENTH WILL,Crossover Prog,Italy
SEVENTH WONDER,Progressive Metal,Sweden
SEVERED GARDEN,Neo-Prog,Italy
SEZIONE FRENANTE,Rock Progressivo Italiano,Italy

SF,Psychedelic/Space Rock,Japan

SFARATTHONS,Rock Progressivo Italiano,Italy

SFILTROM,Eclectic Prog,Slovenia

SFINX,Eclectic Prog,Romania
MARC FOGLI,Progressive Metal,Italy

SFUMATO,Psychedelic/Space Rock,Germany
SGT.,Post Rock/Math rock,Japan
SH'MANTRA,Psychedelic/Space Rock,Australia
SHAA KHAN,Heavy Prog,Germany
SHADES OF DAWN,Symphonic Prog,Germany
SHADOW CIRCUS,Symphonic Prog,United States
SHADOW GALLERY,Progressive Metal,United States
SHADOW MERCHANT,Heavy Prog,United States
TH HADOW THEORY,Progressive Metal,Multi-National

SHADOWFAX,Crossover Prog,United States
P.J HADOWHAWK,Neo-Prog,United States

SHADOWLAND,Neo-Prog,United Kingdom

SHADOWLIGHT,Crossover Prog,United Kingdom
SHADOWS LAND,Tech/Extreme Prog Metal,Poland

SHADRANE,Progressive Metal,France

SHADYON,Progressive Metal,France

SHAKARY,Neo-Prog,Switzerland
SHAKTI WITH JOHN MCLAUGHLIN,Indo-Prog/Raga Rock,Multi-National
SHALABI EFFECT,Post Rock/Math rock,Canada
SHALASH BAND,Symphonic Prog,Russia

SHAMALL,Neo-Prog,Germany

SHAMAN,Progressive Metal,Brazil
SHAMAN ELEPHANT,Psychedelic/Space Rock,Norway

SHAMBLEMATHS,Eclectic Prog,Norway

SHAMPOO,Jazz Rock/Fusion,Belgium
ANAND HANKAR,Indo-Prog/Raga Rock,India

SHANNON,Prog Folk,France

SHANNONDOA,Krautrock,Germany

SHANTI,Indo-Prog/Raga Rock,Multi-National
SHAOLIN DEATH SQUAD,Progressive Metal,United States
SHAPES STARS MAKE,Post Rock/Math rock,United States
KAMILL HARAPODINOV,Crossover Prog,Russia

SHARDBORNE,Progressive Metal,Ireland

SHARKMOVE,Symphonic Prog,Indonesia
ROHA HARMA,Progressive Metal,Australia
SHATTER PROJECKT,Psychedelic/Space Rock,United States
SHATTERED GLASS,Progressive Metal,Brazil
SHATTERED LIGHT,Progressive Metal,Russia
SHATTERED SKIES,Progressive Metal,United Kingdom
SHATTERED SYSTEMS,Progressive Metal,United States
SHAVE THE MONKEY,Prog Folk,United Kingdom
MAR HEEKY,Progressive Electronic,United Kingdom
SHEER CEREBRAL POWER,Eclectic Prog,Various
SHELL FROM OCEANIC,Progressive Metal,Portugal
WILLIA HELLER,Prog Related,France
HELTER IN THE DESERT,Post Rock/Math rock,Mexico
SHELTER RED,Experimental/Post Metal,United States

SHELVING,Experimental/Post Metal,Switzerland

SHEM,Psychedelic/Space Rock,Germany
SHEPHERDS OF CASSINI,Experimental/Post Metal,New Zealand
DERE HERINIAN,Jazz Rock/Fusion,United States
SHERPA THE TIGER,Krautrock,Ukraine
BILL HERWOOD,Crossover Prog,United States

SHESHET,Eclectic Prog,Israel

SHIBUSASHIRAZU,Jazz Rock/Fusion,Japan
SHIDE & ACORN,Prog Folk,United Kingdom
KENT HIMAKAWA,Zeuhl,United States
TH HIN,Jazz Rock/Fusion,Georgia
SHINE DIÓN,Prog Folk,Norway

SHINEBACK,Crossover Prog,United Kingdom

SHINGETSU,Symphonic Prog,Japan

SHINING,RIO/Avant-Prog,Norway

SHINING,Tech/Extreme Prog Metal,Sweden
SHINKI CHEN & FRIENDS,Psychedelic/Space Rock,Japan

SHINSEKAI,Eclectic Prog,Japan
SHIP OF FOOLS,Psychedelic/Space Rock,United Kingdom
SHIVA THE DESTRUCTOR,Psychedelic/Space Rock,Ukraine

SHIVANANDA,Jazz Rock/Fusion,Switzerland
TH HIVER,Proto-Prog,Switzerland

SHOB,Jazz Rock/Fusion,France
SHOGUN KUNITOKI,Progressive Electronic,Finland

SHORA,Post Rock/Math rock,Switzerland
SHORT WAVE,Canterbury Scene,United Kingdom
WAYN HORTER,Jazz Rock/Fusion,United States
SHOW-YEN,Heavy Prog,Japan
SHOWMEN 2,Rock Progressivo Italiano,Italy
MAR HREEVE,Progressive Electronic,United Kingdom

SHRINEBUILDER,Experimental/Post Metal,United States
SHUB-NIGGURATH,Zeuhl,France
FREDERIC HULLER,Progressive Electronic,Romania
DAMO HULMAN,Eclectic Prog,United Kingdom

SHUMAUN,Progressive Metal,Multi-National

SHURAKAY,Crossover Prog,Spain

SHUTTAH,Psychedelic/Space Rock,United Kingdom
TH HY TRAFFICKER,Post Rock/Math rock,United States

SHYLOCK,Symphonic Prog,France
PAOL IANI FT. NUOVA IDEA,Rock Progressivo Italiano,Italy

SIBELIUS,Progressive Metal,Venezuela

SICHER,Symphonic Prog,Switzerland

SICKOAKES,Post Rock/Math rock,Sweden

SICMONIC,Tech/Extreme Prog Metal,United States

SIDDHARTHA,Psychedelic/Space Rock,Turkey

SIDDHARTHA,Krautrock,Germany
SIDE C,Rock Progressivo Italiano,Italy
SIDE STEPS,Crossover Prog,Japan
SIEGES EVEN,Progressive Metal,Germany
SIENA ROOT,Heavy Prog,Sweden

SIGH,Experimental/Post Metal,Japan

SIGMA,Neo-Prog,Brazil
SIGMA 5,Progressive Metal,Brazil
SIGMA CERO,Progressive Metal,Spain
SIGNAL TO NOISE RATIO,Psychedelic/Space Rock,Poland
SIGNALS OF BEDLAM,Heavy Prog,United States
SIGNS OF ONE,Prog Related,Canada
SIGUR RÓS,Post Rock/Math rock,Iceland

SIIILK,Crossover Prog,France

SIINAI,Krautrock,Finland

SIJ,Progressive Electronic,Ukraine
SIKA REDEM,Experimental/Post Metal,United Kingdom

SIKTH,Tech/Extreme Prog Metal,United Kingdom
SIL MUIR,Progressive Electronic,Italy
SILAS NEPTUNE,Psychedelic/Space Rock,United States

SILBERBART,Krautrock,Germany
SILENCE KIT,Post Rock/Math rock,Russia
SILENCE THE ARIA,Tech/Extreme Prog Metal,United States
TH ILENCE,Eclectic Prog,Japan

SILENCIO,RIO/Avant-Prog,United States
SILENT AGREEMENT,Neo-Prog,Netherlands
SILENT CALL,Progressive Metal,Sweden
SILENT CARNIVAL,Krautrock,Italy
SILENT CLASH,Progressive Metal,Canada
SILENT EDGE,Progressive Metal,Netherlands
SILENT EXILE,Progressive Metal,Canada
SILENT GRACE,Eclectic Prog,Ukraine
SILENT ISLAND,Post Rock/Math rock,Hungary
SILENT LAPSE,Progressive Metal,United States
SILENT LUCIDITY,Progressive Metal,Germany
SILENT MEMORIAL,Progressive Metal,Switzerland
SILENT SCREAM,Progressive Metal,Argentina
SILENT TEMPLE,Crossover Prog,United States
SILENT VOICES,Progressive Metal,Finland

SILENTCLOCK,Crossover Prog,France

SILHOUETTE,Neo-Prog,Netherlands

SILJAN,Heavy Prog,France

SILMARIL,Prog Folk,United States
L ILO,RIO/Avant-Prog,Japan

SILOAH,Krautrock,Germany

SILUETLESS,Progressive Metal,Lithuania
SILVER APPLES,Proto-Prog,United States
SILVER HUNTER,Crossover Prog,United Kingdom
SILVER KEY,Neo-Prog,Italy
SILVER LINING,Symphonic Prog,France
ILVER MT. ZION,Post Rock/Math rock,Canada
SILVER SUMMIT,Prog Folk,United States
TH ILVER SURFER,Progressive Electronic,Spain
TH ILVERMAN,Progressive Electronic,United Kingdom
SILVESTER ANFANG,Krautrock,Belgium
FABIOL IMAC,Eclectic Prog,Mexico

SIMAKDIALOG,Jazz Rock/Fusion,Indonesia
SIMEON SOUL CHARGER,Crossover Prog,United States

SIMILAR,Psychedelic/Space Rock,Puerto Rico
ADRIANN IMIONI,Crossover Prog,Brazil
MICKE IMMONDS,Symphonic Prog,United Kingdom
SIMON APPLE,Crossover Prog,United States
SIMON SAYS,Symphonic Prog,Sweden

SIMPLEXITY,Crossover Prog,Egypt
SIMPLY THEY,Neo-Prog,Canada

SIMULACRUM,Progressive Metal,Finland
SINATLIS TSELITSADI (THE LIGHT YEAR),Eclectic Prog,Georgia
DAV INCLAIR,Prog Related,United Kingdom
RICHAR INCLAIR,Canterbury Scene,United Kingdom

SINDELFINGEN,Prog Folk,United Kingdom

SINESTESIA,Progressive Metal,Italy

SINEW,Crossover Prog,Germany
PETE INFIELD,Prog Related,United Kingdom
SINGLE CELLED ORGANISM,Crossover Prog,Germany

SINGLELITO,Eclectic Prog,Colombia

SINGULARITY,Crossover Prog,United States

SINIAALTO,Progressive Electronic,Finland
SINISTER STREET,Neo-Prog,Netherlands

SINISTRO,Experimental/Post Metal,Portugal

SINKADUS,Symphonic Prog,Sweden
SINOIA CAVES,Progressive Electronic,Canada
SINTESI DEL VIAGGIO DI ES,Rock Progressivo Italiano,Italy

SINTESIS,Jazz Rock/Fusion,Argentina

SINTESIS,Prog Folk,Cuba

SINTO,Krautrock,Germany
SINTONIA DISTORTA,Rock Progressivo Italiano,Italy

SINUS,Neo-Prog,Poland

SIOS,Progressive Metal,United States

SIOUM,Post Rock/Math rock,United States

SIQUIERO,Crossover Prog,Argentina
SIR MILLARD MULCH,RIO/Avant-Prog,United States
SIRI KARLSSON,Krautrock,Sweden

SIRIUS,Symphonic Prog,Germany

SISARE,Experimental/Post Metal,Finland
SISTA MAJ,Psychedelic/Space Rock,Sweden
I ISTEMA,Rock Progressivo Italiano,Italy
SISTER HELEN,Crossover Prog,United States
SISTERHOOD OF KLANGPEDAL,Jazz Rock/Fusion,Slovakia

SISTRA,Psychedelic/Space Rock,Italy

SITHONIA,Rock Progressivo Italiano,Italy
SITTING BULL,Krautrock,Germany
SIX CYLINDRES EN V,RIO/Avant-Prog,France
SIX ELEMENTS,Neo-Prog,United States
SIX MAGICS,Progressive Metal,Chile
SIX NORTH,Jazz Rock/Fusion,Japan
SIX ORGANS OF ADMITTANCE,Psychedelic/Space Rock,United States
TH IX PARTS SEVEN,Post Rock/Math rock,United States
SIXTY-NINE,Symphonic Prog,Germany

SIXUN,Jazz Rock/Fusion,France
RIKAR JÖBLOM,Eclectic Prog,Sweden

SJODOGG,Tech/Extreme Prog Metal,Norway

SJS,Neo-Prog,Australia

SKAGOS,Experimental/Post Metal,Canada
SKALDIC CURSE,Tech/Extreme Prog Metal,United Kingdom

SKALDOWIE,Eclectic Prog,Poland
DE KANDALŘSE ORKESTER,Jazz Rock/Fusion,Norway
SKÁPHE,Tech/Extreme Prog Metal,Multi-National

SKE,Eclectic Prog,Italy

SKEEM,Neo-Prog,France
SKELETON CREW,RIO/Avant-Prog,United States

SKELETONBREATH,Heavy Prog,United States

SKEPPET,Krautrock,Sweden
SKEWED SKIES,Experimental/Post Metal,Germany
SKIN ALLEY,Jazz Rock/Fusion,United Kingdom

SKIZMA,Tech/Extreme Prog Metal,Finland

SKORE,Heavy Prog,Hungary
JAKO KŘTT,Progressive Electronic,Denmark

SKRYPTOR,Experimental/Post Metal,United States

SKRYVANIA,Symphonic Prog,France
JÓZE KRZEK,Eclectic Prog,Poland

SKY,Eclectic Prog,United Kingdom
SKY ARCHITECT,Heavy Prog,Netherlands
SKY ARCHITECTS,Post Rock/Math rock,Denmark
SKY CRIES MARY,Crossover Prog,United States
SKY EMPIRE,Progressive Metal,United Kingdom
SKY PICNIC,Psychedelic/Space Rock,United States
SKY SIGNALS,Progressive Metal,Australia
SKYFOX 8,Neo-Prog,Brazil

SKYHARBOR,Progressive Metal,Multi-National

SKYLAKE,Crossover Prog,Netherlands

SKYRAMPS,Progressive Electronic,United States
TH KYS,Crossover Prog,Lithuania

SKYSAW,Crossover Prog,United States

SKYTHALA,Tech/Extreme Prog Metal,United States

SKYWHALE,Jazz Rock/Fusion,United Kingdom
SL THEORY,Heavy Prog,Greece
SLAMMIN'THRU,Progressive Metal,Spain
SLAPP HAPPY,RIO/Avant-Prog,Multi-National
TO LATTER,Crossover Prog,United Kingdom
SLAVES TO FASHION / EX P:O:B (PEDESTRIANS OF BLUE),Progressive Metal,Norway
TH LEEP DESIGN,Post Rock/Math rock,United States
SLEEP IN HEADS,Progressive Metal,Ukraine
SLEEP MAPS,Experimental/Post Metal,United States
SLEEP REBELLION,Crossover Prog,United States
SLEEP SIREN,Progressive Metal,United States
SLEEP TERROR,Tech/Extreme Prog Metal,United States
SLEEP TOKEN,Post Rock/Math rock,United Kingdom
SLEEPERS AWAKE,Progressive Metal,United States
SLEEPIN PILLOW,Psychedelic/Space Rock,Greece
SLEEPING IN GETHSEMANE,Experimental/Post Metal,United States
SLEEPING IN TRAFFIC,Progressive Metal,Canada
SLEEPING PANDORA,Psychedelic/Space Rock,Germany
SLEEPING PEOPLE,Post Rock/Math rock,United States

SLEEPLESS,Crossover Prog,Israel

SLEEPMAKESWAVES,Post Rock/Math rock,Australia

SLEEPSTREAM,Post Rock/Math rock,Greece
SLEEPWALKER SUN,Progressive Metal,Brazil
SLEEPY HOLLOW,Crossover Prog,United States
SLEEPY PEOPLE,Eclectic Prog,United Kingdom
SLEEPY SUN,Psychedelic/Space Rock,United States
SLEEPYTIME GORILLA MUSEUM,RIO/Avant-Prog,United States
FRANCISC LEPOY,RIO/Avant-Prog,Argentina
JIM LEVIN,Prog Folk,Ireland
SLICE THE CAKE,Tech/Extreme Prog Metal,United Kingdom
JULI LICK,Eclectic Prog,United States
SLIM CHARLES,Crossover Prog,United States

SLINT,Prog Related,United States

SLIVOVITZ,Jazz Rock/Fusion,Italy

SLOCHE,Jazz Rock/Fusion,Canada

SLOGANS,Rock Progressivo Italiano,Italy
SLOVO MIRA,Psychedelic/Space Rock,Russia
SLOW ELECTRIC,Crossover Prog,Multi-National
TH LOW LIGHT,Psychedelic/Space Rock,Australia
SLOW MOTION REIGN,Neo-Prog,United States
SLOW RIDE HOME,Psychedelic/Space Rock,Ukraine
SLOW SIX,Post Rock/Math rock,United States
(THE) LOWEST RUNNER (IN ALL THE WORLD),Post Rock/Math rock,United States
TH LOWMOVIES,Jazz Rock/Fusion,Italy

SLOWS,Progressive Electronic,United Kingdom

SLP,Heavy Prog,Canada
SLUG COMPARISON,Crossover Prog,Canada

SLUGDGE,Tech/Extreme Prog Metal,United Kingdom

SLYCHOSIS,Neo-Prog,United States
TH LYDE,Progressive Metal,Canada

SMAK,Jazz Rock/Fusion,Yugoslavia

SMALLMAN,Experimental/Post Metal,Bulgaria

SMALLTAPE,Crossover Prog,Germany

SMASH,Indo-Prog/Raga Rock,Spain
SMASH THE CRASH,Jazz Rock/Fusion,Poland

SMEGMA,RIO/Avant-Prog,United States
SMELL OF INCENSE,Prog Folk,Norway
TH MILE,Crossover Prog,United Kingdom
CHA MITH'S BOMBASTIC MEATBATS,Jazz Rock/Fusion,United States
MALCOL MITH,Eclectic Prog,United States
NATHAN PARKE MITH,Jazz Rock/Fusion,United States

SMOHALLA,Experimental/Post Metal,France

SMOKE,Jazz Rock/Fusion,United States
SMOKESTACK FAERIE,Prog Folk,Finland
SMOKING SPORE,Psychedelic/Space Rock,United States
MAR MOOT,Neo-Prog,United States

SMOTE,Krautrock,United Kingdom

SNAILFACE,Heavy Prog,United States
SNAKE OIL,RIO/Avant-Prog,France
SNAKE OIL,Psychedelic/Space Rock,United States

SNAKEFINGER,RIO/Avant-Prog,United Kingdom
SNAKES ALIVE,Crossover Prog,Australia
SNAKES DON'T BELONG IN ALASKA,Psychedelic/Space Rock,United Kingdom
SNARLING ADJECTIVE CONVENTION,RIO/Avant-Prog,United States

SNC,Psychedelic/Space Rock,Italy
GRE NEDDON,Crossover Prog,Australia
MIR NELDER,Eclectic Prog,Netherlands
TH NOBS,Krautrock,France
SIGMUN NOPEK III,Eclectic Prog,United States

SNOVI,Psychedelic/Space Rock,Croatia
VICTO NOW,Crossover Prog,United States

SNOWBALL,Jazz Rock/Fusion,Germany

SNOWBLOOD,Experimental/Post Metal,United Kingdom

SNOWDONIA,Neo-Prog,Spain

SNOWMAN,Neo-Prog,Portugal
SO DOES YOUR MOTHER,Crossover Prog,Italy
SO IS THE TONGUE,Experimental/Post Metal,United States
SOCIAL TENSION,Symphonic Prog,Japan
TH OCIETŔ ANONIMA DECOSTRUZIONISMI ORGANICI,RIO/Avant-Prog,Italy
L OCIETE DES TIMIDES Ŕ LA PARADE DES OISEAUX,RIO/Avant-Prog,France

SOCIONIC,Progressive Metal,United States

SOCKARIS,Progressive Metal,Mexico

SOEN,Experimental/Post Metal,Multi-National
SOFT HEAP,Canterbury Scene,United Kingdom
SOFT HEARTED SCIENTISTS,Prog Folk,United Kingdom
SOFT MACHINE LEGACY,Canterbury Scene,United Kingdom
TH OFT MACHINE,Canterbury Scene,United Kingdom
SOFT MOUNTAIN,Canterbury Scene,Multi-National
SOFT WORKS,Canterbury Scene,United Kingdom
SOFTEN THE GLARE,Jazz Rock/Fusion,United States

SOFTWARE,Progressive Electronic,Germany
I OGNO DI RUBIK,Rock Progressivo Italiano,Italy
SOL INVICTUS,Prog Folk,United Kingdom
SOL KIA,Experimental/Post Metal,Belgium
SOLACE SUPPLICE,Heavy Prog,France

SOLANACEAE,Prog Folk,Denmark
SOLAR ARCHITECT,Heavy Prog,Canada
SOLAR CORONA,Psychedelic/Space Rock,Portugal
SOLAR GLORY,Psychedelic/Space Rock,United States
SOLAR PLEXUS,Jazz Rock/Fusion,Sweden
SOLAR PROJECT,Psychedelic/Space Rock,Germany
SOLAR SOMA,Crossover Prog,Australia
SOLAR WIND,Eclectic Prog,Israel

SOLARFERENCE,Prog Folk,United Kingdom

SOLARHALL,Heavy Prog,Finland

SOLARIS,Symphonic Prog,Hungary
EINA OLBERG,Crossover Prog,Norway
SOLE REMEDY,Progressive Metal,Finland

SOLEDAD,Progressive Metal,France

SOLEFALD,Tech/Extreme Prog Metal,Norway
SOLID GROUND,Crossover Prog,Montenegro
SOLID VISION,Progressive Metal,Italy

SOLIS,Neo-Prog,Brazil
SOLIS LACUS,Jazz Rock/Fusion,Belgium

SOLITUDE,Crossover Prog,Ukraine

SOLKYRI,Post Rock/Math rock,Australia

SOLSTAFIR,Experimental/Post Metal,Iceland

SOLSTICE,Neo-Prog,United Kingdom

SOLSTICE,Jazz Rock/Fusion,Canada
SOLSTICE COIL,Prog Related,Israel

SOLTERRA,Crossover Prog,United States

SOLUM,Heavy Prog,Sweden

SOLUS3,Eclectic Prog,United Kingdom

SOLUTION,Jazz Rock/Fusion,Netherlands
SOLUTION SCIENCE SYSTEMS,Heavy Prog,United States
SOM IMAGINÁRIO,Psychedelic/Space Rock,Brazil
SOM NOSSO DE CADA DIA,Eclectic Prog,Brazil

SOMA,Psychedelic/Space Rock,United Kingdom

SOMA,Jazz Rock/Fusion,United States
SOMA PLANET,Eclectic Prog,Spain
SOMA WHITE,Crossover Prog,Poland

SOMALGIA,Experimental/Post Metal,United Kingdom
SOMALI YACHT CLUB,Psychedelic/Space Rock,Ukraine
SOMBRE HOLIDAY,Progressive Metal,United States
SOMBRE REPTILE,Jazz Rock/Fusion,France
SOMEWHERE IN THE SKY,Crossover Prog,Greece

SOMMA,Post Rock/Math rock,Russia

SOMNAMBULIST,Crossover Prog,United States

SOMNURI,Experimental/Post Metal,United States

SONAR,Psychedelic/Space Rock,Hungary

SONAR,RIO/Avant-Prog,Switzerland
SONCNA POT,Jazz Rock/Fusion,Yugoslavia
SONIC BOOM,Psychedelic/Space Rock,United Kingdom
SONIC DEBRIS,Progressive Metal,Norway
SONIC DESOLUTION,Heavy Prog,Sweden
SONIC PULSAR,Crossover Prog,Portugal
TH ONIC SHAMEN,Psychedelic/Space Rock,United Kingdom
SONIC SIGHT,Neo-Prog,Norway
SONIC TAPESTRY,Neo-Prog,United Kingdom
SONIC TRIP PROJECT,Psychedelic/Space Rock,United Kingdom
SONIQ CIRCUS,Heavy Prog,Sweden
SONIQ THEATER,Crossover Prog,Germany
SONISK BLODBAD,Progressive Electronic,Multi-National

SONNA,Post Rock/Math rock,United States
SONNÖV,Post Rock/Math rock,Spain
SONORA SUNRISE,Psychedelic/Space Rock,Russia

SONORHC,Psychedelic/Space Rock,France
SONOROUS DYNAMO,Progressive Metal,Switzerland
SONS OF ALPHA CENTAURI,Experimental/Post Metal,United Kingdom
SONS OF APOLLO,Progressive Metal,United States
SONS OF CEPHEIDS,RIO/Avant-Prog,United States
SONS OF SEASONS,Progressive Metal,Germany
SONS OF ZEVEDEUS,Eclectic Prog,Greece

SONTAAG,Psychedelic/Space Rock,United Kingdom
SONUS UMBRA,Crossover Prog,United States
BRUC OORD,Crossover Prog,United Kingdom
SOPHIE'S EARTHQUAKE,Psychedelic/Space Rock,Germany

SOPHISTREE,Eclectic Prog,Germany
NICKLA ŘRENSEN,Psychedelic/Space Rock,Denmark
L ORGENTE,Rock Progressivo Italiano,Italy

SORNE,Prog Folk,United States
ALA ORRENTI,Rock Progressivo Italiano,Italy
SORROWFUL WINDS,Progressive Metal,Greece
SORRY NO FERRARI,Heavy Prog,United States

SOT,RIO/Avant-Prog,Norway

SOTOS,RIO/Avant-Prog,France
SOUL CAGES,Progressive Metal,Germany
SOUL DOUBT,Progressive Metal,Italy
SOUL ENEMA,Eclectic Prog,Israel
SOUL SECRET,Progressive Metal,Italy
TH OULBREAKER COMPANY,Psychedelic/Space Rock,Spain

SOULENGINE,Symphonic Prog,Italy

SOULJOURNERS,Progressive Metal,United States
SOULS IGNITE,Crossover Prog,Argentina
SOULS VIBRATING IN THE UNIVERSE,Post Rock/Math rock,United Kingdom

SOULSPLITTER,Progressive Metal,Germany
SOUND & SHAPE,Heavy Prog,United States
SOUND GOAT PROJECT,Heavy Prog,Poland
SOUND HORIZON,Crossover Prog,Japan
TH OUND OF ANIMALS FIGHTING,Heavy Prog,United States
SOUND OF CONTACT,Crossover Prog,Multi-National
SOUND OF SILENCE,Progressive Metal,Greece

SOUNDARCADE,Psychedelic/Space Rock,Latvia

SOUNDDIARY,Crossover Prog,Austria

SOUNDGEIST,Progressive Metal,Greece

SOUNDRISE,Crossover Prog,Italy
SOUNDS LIKE THE END OF THE WORLD,Post Rock/Math rock,Poland
SOUNDS OF NEW SOMA,Progressive Electronic,Germany

SOUNDSCAPE,Progressive Metal,United States

SOUP,Crossover Prog,Norway

SOUR,Psychedelic/Space Rock,Colombia

SOURCE,Progressive Metal,United States
TH OURCE,Crossover Prog,United States
SOUTH HARBOUR,Experimental/Post Metal,Denmark
SOUTH OF NO NORTH,Krautrock,Belgium
SOUTHERN CROSS,Progressive Metal,Canada
SOUTHERN EMPIRE,Crossover Prog,Australia

SOUVARIS,Post Rock/Math rock,United Kingdom
SOUVENIR'S YOUNG AMERICA,Post Rock/Math rock,United States
SPACE ALLIANCE,Progressive Electronic,Italy
SPACE ART,Progressive Electronic,France
SPACE CIRCUS,Jazz Rock/Fusion,Japan
SPACE DEBRIS,Psychedelic/Space Rock,Germany
SPACE DRUIDS,Psychedelic/Space Rock,Russia
SPACE EXPLOSION,Krautrock,Germany
SPACE IN SPACE,Crossover Prog,Croatia
SPACE INVADERS,Psychedelic/Space Rock,Germany
SPACE JUNK IS FOREVER,Eclectic Prog,United States
SPACE KITCHEN,Crossover Prog,Canada
SPACE MACHINE,Progressive Electronic,Japan
SPACE MIRRORS,Psychedelic/Space Rock,Multi-National
SPACE MONSTER,Crossover Prog,Canada
SPACE MUSHROOM FUZZ,Psychedelic/Space Rock,United States
SPACE ODYSSEY,Progressive Metal,Sweden
SPACE RITUAL,Psychedelic/Space Rock,United Kingdom
THE PACE SPECTRUM,Psychedelic/Space Rock,Germany
SPACE SWEEPER,Progressive Electronic,United States

SPACEBOX,Krautrock,Germany

SPACECRAFT,Progressive Electronic,France
SPACED OUT,Jazz Rock/Fusion,Canada

SPACEHEAD,Psychedelic/Space Rock,United Kingdom

SPACEKING,Experimental/Post Metal,Russia
TH PACELORDS,Psychedelic/Space Rock,Germany
SPACEMEN 3,Psychedelic/Space Rock,United Kingdom

SPACES,Jazz Rock/Fusion,United States

SPACES,Post Rock/Math rock,United States

SPACESEED,Psychedelic/Space Rock,United States

SPACESHIP,Jazz Rock/Fusion,United States
TH PACIOUS MIND,Psychedelic/Space Rock,Sweden
TON PADA,Jazz Rock/Fusion,United States

SPALTKLANG,RIO/Avant-Prog,Switzerland

SPARIFANKAL,Prog Folk,Germany
SPARKLE IN GREY,Post Rock/Math rock,Italy

SPARKS,Crossover Prog,United States
SPARROWS SWARM AND SING,Post Rock/Math rock,United States
SPASTIC INK,Tech/Extreme Prog Metal,United States
SPATIAL MOODS,Psychedelic/Space Rock,Peru
SPEAKER GAIN TEARDROP,Post Rock/Math rock,Japan
SPEAKING TO STONES,Progressive Metal,United States
SPECIAL OTHERS,Jazz Rock/Fusion,Japan
SPECIAL PROVIDENCE,Progressive Metal,Hungary
SPECIES BEING,RIO/Avant-Prog,United States
SPECIMEN 37,Psychedelic/Space Rock,United States

SPECIMEN13,Eclectic Prog,Canada
SPECTRAL INCURSION,Tech/Extreme Prog Metal,United States

SPECTRUM,Heavy Prog,Chile

SPECTRUM,Crossover Prog,Australia
SPECTRUM ROAD,Jazz Rock/Fusion,Multi-National

SPEECHLESS,Crossover Prog,United States
SPEED LIMIT,Jazz Rock/Fusion,France
SPEED; GLUE AND SHINKI,Psychedelic/Space Rock,Japan

SPEKTAKEL,Eclectic Prog,Germany

SPEKTAR,Crossover Prog,Yugoslavia
ROMA PEKTOR,Crossover Prog,Israel

SPEKTRUM,Neo-Prog,Sweden

SPERM,Progressive Electronic,Finland
SPERRMÜLL,Krautrock,Germany

SPETTRI,Heavy Prog,Italy
SPHERE 3,Jazz Rock/Fusion,United Kingdom
SPHERE OF SOULS,Progressive Metal,Netherlands
SPHERIC UNIVERSE EXPERIENCE,Progressive Metal,France

SPHEROE,Jazz Rock/Fusion,France

SPHINX,Symphonic Prog,Multi-National

SPIN,Jazz Rock/Fusion,Netherlands
SPIN XXI,Symphonic Prog,Brazil
SPINETTA JADE,Jazz Rock/Fusion,Argentina

SPINIFEX,RIO/Avant-Prog,Netherlands

SPINOZARRE,Experimental/Post Metal,France

SPIRAL,Psychedelic/Space Rock,United States
SPIRAL ARCHITECT,Tech/Extreme Prog Metal,Norway
SPIRAL DRIVE,Psychedelic/Space Rock,Germany
SPIRAL GALAXY,Krautrock,United States
SPIRAL KEY,Crossover Prog,United Kingdom
SPIRAL ORCHESTRA,Symphonic Prog,Switzerland
SPIRAL REALMS,Psychedelic/Space Rock,United Kingdom

SPIRALING,Crossover Prog,United States

SPIRALMAZE,Psychedelic/Space Rock,Greece

SPIRES,Tech/Extreme Prog Metal,United States
SPIRES THAT IN THE SUNSET RISE,Prog Folk,United States

SPIRIT,Proto-Prog,United States
TH PIRIT OF CHRISTMAS,Eclectic Prog,Canada
SPIRIT OF THE MATTER,Psychedelic/Space Rock,France
SPIRITCZUALIC ENHANCEMENT CENTER,Krautrock,Germany
SPIRITS BURNING,Psychedelic/Space Rock,Multi-National
SPIRITS OF THE DEAD,Crossover Prog,Norway
TH PIRITS OF THE EARTH,Psychedelic/Space Rock,United Kingdom

SPIROGYRA,Prog Folk,United Kingdom

SPIROSFERA,Eclectic Prog,Italy

SPITZEN,Neo-Prog,Netherlands

SPLASH,Jazz Rock/Fusion,Sweden
SPLEEN ARCANA,Crossover Prog,France

SPLINK,Psychedelic/Space Rock,United Kingdom

SPLINTER,Neo-Prog,Netherlands
SPLIT BEARING,Progressive Metal,Czech Republic
SPLIT ENZ,Crossover Prog,New Zealand
SPOCK'S BEARD,Symphonic Prog,United States
SPOKE OF SHADOWS,Heavy Prog,United States
SPONTANEOUS COMBUSTION,Psychedelic/Space Rock,United Kingdom
SPOOKY TOOTH,Proto-Prog,United Kingdom
SPRIGGAN MIST,Prog Folk,United Kingdom
SPRIGUNS (OF TOLGUS),Prog Folk,United Kingdom

SPRING,Eclectic Prog,United Kingdom
SPRING & YOUTH,Experimental/Post Metal,Serbia

SPROINGG,Eclectic Prog,Germany
TH PUR,Progressive Metal,Germany

SPURV,Post Rock/Math rock,Norway

SQUACKETT,Crossover Prog,United Kingdom
SQUADRA OMEGA,Psychedelic/Space Rock,Italy

SQUALUS,Experimental/Post Metal,United States

SQUAREPUSHER,Jazz Rock/Fusion,United Kingdom

SQUARTET,RIO/Avant-Prog,Italy
SQUAT CLUB,Heavy Prog,Australia

SQUID,Post Rock/Math rock,United Kingdom

SQUINTALOO,Eclectic Prog,Germany
CHRI QUIRE,Symphonic Prog,United Kingdom
SQUONK OPERA,Crossover Prog,United States
SRI AUROBINDO,Psychedelic/Space Rock,United States

SROD,Progressive Metal,Venezuela
ST 37,Psychedelic/Space Rock,United States
ST MIKAEL,Psychedelic/Space Rock,Sweden
ST. CLAIRE,Symphonic Prog,Japan
ST. ELMO'S FIRE,Heavy Prog,United States
ST. HELENA,Eclectic Prog,Norway
ST. KRAUT,Krautrock,Russia
ST. QUENTIN,Heavy Prog,Germany
ST.-TROPEZ,Rock Progressivo Italiano,Italy
ST.ERHART,Jazz Rock/Fusion,France
STA IMA?,Eclectic Prog,Croatia
STABAT AKISH,RIO/Avant-Prog,France
MARTI TACEY,Progressive Metal,United States

STACKRIDGE,Prog Folk,United Kingdom
STAFF CARPENBORG AND THE ELECTRIC CORONA,Krautrock,Germany

STAGG,Jazz Rock/Fusion,Germany
UN TAGIONE ALL' INFERNO,Rock Progressivo Italiano,Italy
STAGNANT WATERS,Experimental/Post Metal,France

STAIRCASES,Psychedelic/Space Rock,United States

STALINGRAD,Experimental/Post Metal,Spain
STALINGRAD 119,Zeuhl,France

STALLION,Crossover Prog,United Kingdom
STAN D'ART,Eclectic Prog,Poland
STAN UND HILDA,Krautrock,Germany
MARIO LIN TANCATI,Progressive Electronic,Italy

STANDARTE,Heavy Prog,Italy
STANDING OVATION,Experimental/Post Metal,Finland
MAR TANLEY,RIO/Avant-Prog,United States
STAR FK RADIUM,Post Rock/Math rock,United States
STAR ONE,Progressive Metal,Netherlands
STAR PEOPLE,Crossover Prog,United States
STAR PERIOD STAR,Eclectic Prog,United States
STARA RZEKA,Krautrock,Poland

STARBREAKER,Progressive Metal,United States

STARCASTLE,Symphonic Prog,United States

STARDRIVE,Progressive Electronic,United States
STARE AT THE CLOUDS,Experimental/Post Metal,Australia

STARGAZER,Tech/Extreme Prog Metal,Australia
TH TARGAZER'S ASSISTANT,Progressive Electronic,United Kingdom

STARKWEATHER,Tech/Extreme Prog Metal,United States

STARLESS,Crossover Prog,Japan

STAROSTA,Crossover Prog,Argentina

STARQUAKE,Neo-Prog,Germany

STARRING,RIO/Avant-Prog,United States
STARS AND STIPS,Crossover Prog,Netherlands
TH TARS,Psychedelic/Space Rock,Japan

STARSCREAM,Post Rock/Math rock,United States
STARVING DAUGHTERS,Psychedelic/Space Rock,United States
STATE OF MIND,Progressive Metal,Italy
STATE URGE,Crossover Prog,Poland
STATIC LIMIT,Progressive Metal,United States

STATS,Experimental/Post Metal,United States

STATUA,Post Rock/Math rock,Philippines
STATUS MINOR,Progressive Metal,Finland

STAVO,Heavy Prog,United States
L TAZIONE DELLE FREQUENZE,Rock Progressivo Italiano,Italy
RAFAE TCRUZ,Crossover Prog,Brazil
STEAK NUMBER EIGHT,Experimental/Post Metal,Belgium
STEALING AXION,Tech/Extreme Prog Metal,United States
STEALING THE FIRE,Neo-Prog,United Kingdom
STEAM THEORY,Crossover Prog,United States
STEAMBOAT SWITZERLAND,RIO/Avant-Prog,Switzerland

STEAMHAMMER,Crossover Prog,United Kingdom

STEARICA,Post Rock/Math rock,Italy
MICHAE TEARNS,Progressive Electronic,United States
STEEL MILL,Heavy Prog,United Kingdom
STEELEYE SPAN,Prog Related,United Kingdom
STEELY DAN,Jazz Rock/Fusion,United States
SIMO TEENSLAND,RIO/Avant-Prog,Sweden

STEEO,Psychedelic/Space Rock,Italy

STEEP,Jazz Rock/Fusion,United States
VLATK TEFANOVSKI,Prog Folk,Macedonia

STEGOR,Crossover Prog,United States

STEIN,Progressive Metal,Israel
ROBB TEINHARDT,Symphonic Prog,United States
STELLA LEE JONES,Eclectic Prog,Japan
STELLAR CIRCUITS,Progressive Metal,United States

STELLARDRONE,Progressive Electronic,Lithuania
L TELLE DI MARIO SCHIFANO,Rock Progressivo Italiano,Italy
STENCIL FOREST,Symphonic Prog,United States
STEP AHEAD,Neo-Prog,France
STEP INTO LIQUID,Progressive Metal,Germany
STEPAN PROJECT,Crossover Prog,Romania

STEPMOTHER,RIO/Avant-Prog,Multi-National

STERBUS,RIO/Avant-Prog,Italy

STEREOCHROME,Psychedelic/Space Rock,United States

STEREOKIMONO,Psychedelic/Space Rock,Italy

STERLING,Post Rock/Math rock,United States
STERN-COMBO MEISSEN (STERN MEISSEN),Symphonic Prog,Germany
STEVEGANE PROJECT,Crossover Prog,France
MAT TEVENS,Crossover Prog,United Kingdom
STICK MEN,Eclectic Prog,United States
STICKS IN THE CASINO,Heavy Prog,Germany
STICKY BRAIN,Jazz Rock/Fusion,Italy

STILL,Crossover Prog,United States
STILL LIFE,Heavy Prog,United Kingdom
STIMPY LOCKJAW,Eclectic Prog,United States
ALA TIVELL,Prog Folk,France
BRA TOCK,Crossover Prog,United States
LYN TOKES & SOL SURFERS,Crossover Prog,United States

STOLAS,Heavy Prog,United States
STOLEN EARTH,Crossover Prog,United Kingdom
STOLEN MEMORIES,Progressive Metal,France
ROIN TOLT,Symphonic Prog,Sweden
STÖMB,Progressive Metal,France
STONE ANGEL,Prog Folk,United Kingdom
STONE BREATH,Prog Folk,United States
STONE CIRCLE,Tech/Extreme Prog Metal,United Kingdom
STONE HEALER,Experimental/Post Metal,United States
STONED DIPLODOCUS,Post Rock/Math rock,France

STONEHENGE,Symphonic Prog,France

STONEHENGE,Progressive Metal,Hungary
STOP MOTION ORCHESTRA,RIO/Avant-Prog,United States
JEREM TORCH,Eclectic Prog,United States

STORCHI,Experimental/Post Metal,Israel

STORK,Tech/Extreme Prog Metal,United States
STORM AT SUNRISE,Heavy Prog,United States
STORM CORROSION,Eclectic Prog,Multi-National
TORM OF LIGHT,Experimental/Post Metal,United States
TH TORM,Heavy Prog,Spain

STORMS,Post Rock/Math rock,Croatia
STORMY ATMOSPHERE,Progressive Metal,Israel
STORMY SIX,RIO/Avant-Prog,Italy
STÓRSVEIT NIX NOLTES,Prog Folk,Iceland

STORYTELLER,Prog Folk,United Kingdom

STRAMONIO,Progressive Metal,Italy

STRANAFONIA,Rock Progressivo Italiano,Italy
STRANGE CHANGES,RIO/Avant-Prog,United States
STRANGE DAYS,Prog Folk,United Kingdom
TH TRANGE DEATH OF LIBERAL ENGLAND,Post Rock/Math rock,United Kingdom
STRANGE LAND,Progressive Metal,United States
STRANGE POP,Crossover Prog,Poland

STRANGEFISH,Neo-Prog,United Kingdom
STRANGER AEONS,Progressive Metal,Lithuania
TH TRANGER,Progressive Metal,Australia
STRANGERS ON A TRAIN,Neo-Prog,United Kingdom

STRATEGY,Heavy Prog,United States
DEMETRI TRATOS,Rock Progressivo Italiano,Italy

STRATOSPHEERIUS,Crossover Prog,United States
RO TRATTMAN,Crossover Prog,United States
STRATUS LUNA,Jazz Rock/Fusion,Brazil
STRAWBERRY FIELDS,Prog Related,Poland
STRAWBERRY GIRLS,Post Rock/Math rock,United States

STRAWBS,Prog Folk,United Kingdom
STREAM OF CONSCIOUSNESS,Progressive Metal,Switzerland
STREAM OF CONSCIOUSNESS,Progressive Metal,United States
STREAM OF PASSION,Prog Related,Netherlands

STREETDANCER,Jazz Rock/Fusion,United States

STREETMARK,Psychedelic/Space Rock,Germany
PEKK TRENG,Prog Folk,Finland
STRETCH IT TO THE LIMIT,Jazz Rock/Fusion,Peru

STRIDE,Progressive Metal,United States
STRING CHEESE,Prog Folk,United States
STRING CONNECTION,Jazz Rock/Fusion,Poland
STRING DRIVEN THING,Prog Folk,United Kingdom
STRINGPURÉE BAND,Eclectic Prog,Finland
STRINGS ARGUMENTS,Jazz Rock/Fusion,Japan

STRIPSEARCH,RIO/Avant-Prog,United States

STROBE,Psychedelic/Space Rock,United Kingdom

STROMBOLI,Jazz Rock/Fusion,Czech Republic
STRUCTURAL DISORDER,Progressive Metal,Sweden
STUBBORN TINY LIGHTS VS CLUSTERING DARKNESS FOREVER OK,Post Rock/Math rock,United States

STUBBS,Canterbury Scene,Japan
STUDIO KOSMISCHE,Progressive Electronic,United Kingdom
DARY TUERMER,Jazz Rock/Fusion,United States

STULL,Psychedelic/Space Rock,United States

STUMARI,Prog Folk,Georgia

STUMP,Crossover Prog,United Kingdom
STUPID COSMONAUT,Psychedelic/Space Rock,United Kingdom

STYX,Prog Related,United States

SUB,Krautrock,Germany
SUB ROSA,Crossover Prog,Brazil
SUBARACHNOID SPACE,Psychedelic/Space Rock,United States

SUBINTERIOR,Progressive Electronic,Italy
SUBJECT TO THOUGHTS,Crossover Prog,United States

SUBLIMINAL,Symphonic Prog,Argentina

SUBLUNAR,Heavy Prog,Poland
SUBMARINE SILENCE,Rock Progressivo Italiano,Italy

SUBROSA,Experimental/Post Metal,United States

SUBSIGNAL,Neo-Prog,Germany
SUBSPACE RADIO,Heavy Prog,Finland

SUBTERRA,Neo-Prog,Chile
SUBTERRANEAN MASQUERADE,Experimental/Post Metal,Multi-National

SUBTILIOR,RIO/Avant-Prog,Italy

SUBURBANO,Prog Folk,Spain

SUBWAY,Prog Folk,Multi-National
JAME UDAKOW,Eclectic Prog,United States
SUDOKU KILLER,RIO/Avant-Prog,Italy
SÜDSTERN 44,Psychedelic/Space Rock,Germany
SUFFERING HOUR,Tech/Extreme Prog Metal,United States
SUFFOCATE FOR FUCK SAKE,Experimental/Post Metal,Sweden

SUGARLOAF,Heavy Prog,United States
SUHY SILVERGOLD & ALVARADO,Jazz Rock/Fusion,United States
SUI GENERIS,Prog Related,Argentina
SUISHOU NO FUNE,Psychedelic/Space Rock,Japan
SUIT OF LIGHTS,Crossover Prog,United States

SUKELLUSVENE,Jazz Rock/Fusion,Finland
SUL DIVANO,Jazz Rock/Fusion,Argentina
SULA BASSANA,Psychedelic/Space Rock,Germany
JI ULLIVAN,Indo-Prog/Raga Rock,United Kingdom
SULPHAT' KETAMINE,Heavy Prog,France

SULPHUR,Tech/Extreme Prog Metal,Norway

SUMAC,Experimental/Post Metal,Multi-National

SUMDEUS,Psychedelic/Space Rock,United States
SUMMER BREEZE PROJECT,Neo-Prog,Netherlands
SUMMER FADES AWAY,Post Rock/Math rock,China
SUMMER INDOORS,Crossover Prog,United Kingdom

SUMMIT,Experimental/Post Metal,Italy
SUMO ELEVATOR,Eclectic Prog,Israel

SUN,Jazz Rock/Fusion,Germany
TH UN BLINDNESS,Psychedelic/Space Rock,Australia
SUN CAGED,Progressive Metal,Netherlands
SUN CITY GIRLS,RIO/Avant-Prog,United States
SUN COLORED CHAIR,Post Rock/Math rock,United States
SUN DIAL,Psychedelic/Space Rock,United Kingdom
TH UN OR THE MOON,Psychedelic/Space Rock,Germany
SUN TRAVELLERS,Crossover Prog,Multi-National
SUN TREADER,Jazz Rock/Fusion,United Kingdom
SUN WATCHER,Krautrock,United States

SUNBIRDS,Jazz Rock/Fusion,Multi-National
SUNBURNED HAND OF THE MAN,Psychedelic/Space Rock,United States

SUNCHILD,Crossover Prog,Ukraine

SUNDAY,Crossover Prog,United Kingdom
SÜNDENFALL II,Prog Folk,Germany
TH UNDERING,Crossover Prog,Italy
SUSANN UNDFŘR,Crossover Prog,Norway

SUNFOREST,Psychedelic/Space Rock,United Kingdom

SUNGOD,Psychedelic/Space Rock,United States

SUNGRAZER,Psychedelic/Space Rock,Netherlands

SUNHILLOW,Crossover Prog,Finland

SUNHOUSE,Jazz Rock/Fusion,Belgium

SUNLESS,Tech/Extreme Prog Metal,United States
SUNLESS DAWN,Tech/Extreme Prog Metal,Denmark
SUNLIGHT ASCENDING,Post Rock/Math rock,United States

SUNPATH,Progressive Metal,Germany
TH UNPILOTS,Crossover Prog,Australia

SUNPOCRISY,Experimental/Post Metal,Italy
SUNRISE AURANAUT,Crossover Prog,Russia
SUNRISE SUNSET PROJECT,Psychedelic/Space Rock,Russia

SUNSCAPE,Rock Progressivo Italiano,Italy
SUNSET IN THE 12TH HOUSE,Tech/Extreme Prog Metal,Romania
SUNSET MISSION,Crossover Prog,United States
SUNSET OF RA,Psychedelic/Space Rock,Greece

SUNYATA,Eclectic Prog,Singapore
SUOMEN TULLI,Crossover Prog,Finland

SUPAY,Prog Folk,Peru
SUPER FREEGO,Zeuhl,France
SUPER FURRY ANIMALS,Prog Related,United Kingdom
SUPER MASSIVE BLACK HOLES,Tech/Extreme Prog Metal,Canada
SUPER STRING THEORY,Progressive Metal,United States

SUPERCONTINENT,Experimental/Post Metal,United States

SUPERDENSECRUSHLOADFACTOR,RIO/Avant-Prog,Australia

SUPERDRAMA,Neo-Prog,Germany

SUPERFJORD,Psychedelic/Space Rock,Finland
SUPERFLUOUS MOTOR,Jazz Rock/Fusion,Canada

SUPERIOR,Progressive Metal,Germany
SUPERLUMINAL PACHYDERM,Eclectic Prog,United States
SUPERNAL ENDGAME,Crossover Prog,United States

SUPERNOVA,Symphonic Prog,Argentina

SUPERSISTER,Canterbury Scene,Netherlands

SUPERSTRING,RIO/Avant-Prog,Korea

SUPERTRAMP,Crossover Prog,United Kingdom

SUPERVISED,Progressive Metal,United States
SUPPER'S READY,Neo-Prog,Luxembourg
SUPPLY DEMAND & CURVE,Canterbury Scene,Ireland

SUPURATION,Tech/Extreme Prog Metal,France
SUR OCULTO,Jazz Rock/Fusion,Argentina
SUR PACIFICO,Prog Folk,Chile
SURFACE OF THE SUN,Progressive Metal,Canada

SURGERY,Jazz Rock/Fusion,Germany

SURPRISE,Symphonic Prog,United States

SURREAL,Crossover Prog,United States

SURVIVAL,Crossover Prog,Netherlands
SURYA KRIS PETERS,Progressive Electronic,Germany
TH USPENDED CONGRESS,Experimental/Post Metal,Ireland
SUSPENSION SOLAR,Crossover Prog,Argentina

SUSPIRIUM,Progressive Electronic,United Kingdom

SUSPYRE,Progressive Metal,United States

SUSSITA,Prog Folk,Israel

SUSTAIN,Symphonic Prog,Netherlands
MITSUR UTOH,Jazz Rock/Fusion,Japan

SUTRAH,Tech/Extreme Prog Metal,Canada

SUUK,Psychedelic/Space Rock,Estonia

SVANFRIDUR,Heavy Prog,Iceland

SVANN,Prog Related,Poland

SVARTBAG,Psychedelic/Space Rock,Denmark
SVENSKA PSYKVÄNNER,Psychedelic/Space Rock,Sweden

SVETAMUZIKA,Jazz Rock/Fusion,Russia
ROBER VILPA,Neo-Prog,United States
SVNTAX ERROR,Psychedelic/Space Rock,Australia
TH WAN CHORUS,Crossover Prog,United Kingdom
DA WANÖ,Tech/Extreme Prog Metal,Sweden

SWANS,Post Rock/Math rock,United States
SWAPPERS ELEVEN,Neo-Prog,Multi-National
SWARA SAMRAT,Krautrock,Germany
SWARM OF THE LOTUS ,Experimental/Post Metal,United States
WARM OF THE SUN,Experimental/Post Metal,Sweden
PETE WART,Crossover Prog,Netherlands
SWEDENBORG RAUM,Psychedelic/Space Rock,Germany
SWEDISH FAMILY,Symphonic Prog,Sweden

SWEEK,Post Rock/Math rock,Belgium
SWEEP THE LEG JOHNNY,Post Rock/Math rock,United States
SWEET FINGERS,Crossover Prog,Mexico
SWEET HOLE,Heavy Prog,Spain
SWEET MOTHER LOGIC,Post Rock/Math rock,Canada
SWEET POTATO,RIO/Avant-Prog,United Kingdom
SWEET SMOKE,Psychedelic/Space Rock,United States

SWEETWATER,Proto-Prog,United States

SWEVEN,Tech/Extreme Prog Metal,Sweden
SWIADECTWO DOJRZALOSCI,Jazz Rock/Fusion,Poland
SWIFAN EOLH & THE MUDRA CHOIR,Eclectic Prog,Norway
SWIM IN STYX,Tech/Extreme Prog Metal,France

SWIMS,Post Rock/Math rock,United States

SWINGERS,Post Rock/Math rock,Belgium
SWITCH OPENS,Experimental/Post Metal,Sweden

SWRM,Krautrock,United States

SYBAX,Post Rock/Math rock,France

SYBERIA,Post Rock/Math rock,Spain
SYD ARTHUR,Crossover Prog,United Kingdom
SYDERAL OVERDRIVE,Progressive Metal,Italy

SYDERALUS,Experimental/Post Metal,Argentina

SYK,Tech/Extreme Prog Metal,Italy

SYLBAT,Eclectic Prog,France

SYLVAN,Neo-Prog,Germany
NA YLVAN,Crossover Prog,Sweden
SYLVIA BLISS,Eclectic Prog,United States
DAVI YLVIAN,Crossover Prog,United Kingdom

SYLVIUM,Heavy Prog,Netherlands

SYMBYOSIS,Progressive Metal,France

SYMFINITY,Crossover Prog,United States
SYMMETRY/SYMMETRY,Crossover Prog,United States
SYMPHONIC HAZE,Crossover Prog,United States
SYMPHONIC SLAM,Prog Related,Canada

SYMPHONY,Progressive Metal,Poland
SYMPHONY X,Progressive Metal,United States

SYMPOZION,Jazz Rock/Fusion,Israel
TH YN,Psychedelic/Space Rock,United Kingdom

SYNANTHESIA,Prog Folk,United Kingdom

SYNAPSE,Progressive Metal,France

SYNCAGE,Eclectic Prog,Italy

SYNCATTO,Progressive Metal,United States
SYNCOPATED SILENCE,Zeuhl,Russia

SYNCOPE,Jazz Rock/Fusion,Canada

SYNCRISIS,Jazz Rock/Fusion,Germany
SYNCROMIND PROJECT,Progressive Metal,Germany
SYNDÉRESI,Rock Progressivo Italiano,Italy

SYNDONE,Rock Progressivo Italiano,Italy

SYNE,Heavy Prog,Italy

SYNEMA,Crossover Prog,United States

SYNERGY,Prog Related,United States
SYNERGY PROTOCOL,Progressive Metal,Netherlands

SYNESTHESIA,Progressive Metal,France

SYNESTHESIA,Progressive Metal,Dominican Republic

SYNKOKE,RIO/Avant-Prog,Norway

SYNKOPY,Eclectic Prog,Czech Republic

SYNOPSIS,Symphonic Prog,France

SYNOPSIS,Prog Related,Estonia

SYNTHESAX,Jazz Rock/Fusion,Germany

SYRIAK,Neo-Prog,Venezuela

SYRINX,Progressive Electronic,Canada

SYRINX,Jazz Rock/Fusion,France

SYRIUS,Eclectic Prog,Hungary
SYSTEMS THEORY,Psychedelic/Space Rock,United States

SYZYGY,Crossover Prog,United States

SYZYGY,Progressive Metal,Australia
WITOL ZCZUREK,Jazz Rock/Fusion,Poland

SZELA,Prog Folk,Poland

SZENTENDRE,RIO/Avant-Prog,France
HERMAN ZOBEL,RIO/Avant-Prog,Austria