List of compositions by Ludwig van Beethoven

The compositions of Ludwig van Beethoven consist of 722 works written over forty-five years, from his earliest work in 1782 (variations for piano on a march by Ernst Christoph Dressler) when he was only twelve years old and still in Bonn, until his last work just before his death in Vienna in 1827. Beethoven composed works in all the main genres of classical music, including symphonies, concertos, string quartets, piano sonatas and one opera. His works range from requiring a solo performer to needing a large orchestra and chorus to perform.
Beethoven straddled both the Classical and Romantic periods, working in genres associated with Wolfgang Amadeus Mozart and his teacher Joseph Haydn such as the piano concerto, string quartet and symphony, while on the other hand providing the groundwork for other Romantic composers such as Hector Berlioz and Franz Liszt with programmatic works such as his Pastoral Symphony and Piano Sonata "Les Adieux". Beethoven's work is typically divided into three periods: the "Early" period, where Beethoven composed in the "Viennese" style; the "Middle" or "Heroic" period, where his work is characterised by struggle and heroism, such as in the "Eroica" Symphony, the Fifth Symphony, the "Appassionata" Sonata and in his sole opera Fidelio; and the "Late" period, marked by intense personal expression and an emotional and intellectual profundity. Although his output dropped drastically in his later years, this period saw the composition of masterpieces such as the late string quartets, the final five piano sonatas, the "Diabelli Variations", the Missa Solemnis and the Ninth Symphony.
Beethoven's works are classified by both genre and various numbering systems. The best-known numbering system for Beethoven's works is that by opus number, assigned by Beethoven's publishers during his lifetime. Only 172 of Beethoven's works have opus numbers, divided among 138 opus numbers. Many works that were unpublished or else published without opus numbers have been assigned either "WoO" ("Werke ohne Opuszahl"—works without opus number), Hess or Biamonti numbers. For example, the short piano piece "Für Elise", is more fully known as the "Bagatelle in A minor, WoO 59 ('Für Elise')". Some works are also commonly referred to by their nicknames, such as the "Kreutzer" Violin Sonata, or the "Archduke" Piano Trio.
As well as these numbering systems, works are also often identified by their number within their genre. For example, the 14th string quartet, published as Opus 131, may be referenced either as "String Quartet No. 14" or "the Opus 131 String Quartet". The listings below include all of these relevant identifiers. While other catalogues of Beethoven's works exist, the numbers here represent the most commonly used.
List of works by genre.
Beethoven's works are published in several editions, the first of these was "Ludwig van Beethovens Werke: Vollständige kritisch durchgesehene überall berechtigte Ausgabe" published between 1862 and 1865 with a supplemental volume in 1888 by Breitkopf & Härtel, commonly known as the "Beethoven Gesamtausgabe" [GA]. While this was a landmark achievement at the time, the limitations of this edition soon became apparent. Between 1959 and 1971 Willy Hess prepared a supplemental edition, "Beethoven: Sämtliche Werke: Supplemente zur Gesamtausgabe", [HS] containing works that were not in the "Gesamtausgabe".
Since 1961 the Beethoven Archive has been publishing a new scholarly–critical Complete Edition of Beethoven's works, "Beethoven: Werke: neue Ausgabe sämtlicher Werke" [NA]. However, only 42 of the projected 56 volumes have been published so far. As this edition has not been published in full there are works without an NA designation.
Legend for publications – p: parts s: full score vs: vocal score
Orchestral music.
Beethoven wrote nine symphonies, nine concertos, and a variety of other orchestral music, ranging from overtures and incidental music for theatrical productions to other miscellaneous "occasional" works, written for a particular occasion. Of the concertos, seven are widely known (one violin concerto, five piano concertos, and one triple concerto for violin, piano, and cello); the other two are an early piano concerto (WoO 4) and an arrangement of the Violin Concerto for piano and orchestra (Opus 61a).
Symphonies.
Beethoven is believed to have intended to write a Tenth Symphony in the last year of his life; a performing version of possible sketches was assembled by Barry Cooper.
Chamber music.
Beethoven wrote 16 string quartets and numerous other forms of chamber music, including piano trios, string trios, and sonatas for violin and cello with piano, as well as works with wind instruments.
Solo piano music.
In addition to the 32 celebrated sonatas, Beethoven's work for solo piano includes many one-movement pieces, more than twenty sets of variations, most unpublished in his lifetime or published without opus number, and over thirty bagatelles, including the well-known "Für Elise".
Vocal music.
While he completed only one opera, Beethoven wrote vocal music throughout his life, including two Mass settings, other works for chorus and orchestra (in addition to the Ninth Symphony), arias, duets, art songs (lieder), and true song cycles.
List of works by number.
The following is a list of Beethoven's works, sorted by Opus number, followed by works listed as WoO in the Kinsky–Halm Catalogue, and then works listed in the appendix of that catalog, which are given "Anhang" numbers. These are followed by additional works with Hess numbers listed in the catalog of Willy Hess that are not otherwise listed in the Kinsky–Halm Catalogue. Lastly there is works with Biamonti numbers (Bia.), from the Biamonti Catalogue, an attempt to catalogue everything that Beethoven wrote in chronological order, though there are works that were not known at the time it was compiled. Thus there is no definitive catologue of Beethoven's works to match the Deutsch catalogue for Schubert or the Köchel catalogue for Mozart.
Works with opus numbers.
The opus numbers were assigned by publishers to Beethoven's works as they were published. The opus numbers do not include all works that were published in Beethoven's lifetime nor are they in chronological order. For instance, the Octet Op. 103 was written before November 1792, while Op. 102 and Op. 104 were written in 1815 and 1817 respectively.
Works with WoO numbers.
The numbers and categories used below are from the Kinsky–Halm Catalogue of 1955. "WoO" is an abbreviation of "Werke ohne Opuszahl", German for "Works without Opus number". While some of these works were published during Beethoven's lifetime but not given opus numbers, for instance the piano variations WoO 80, others like Für Elise WoO 59 were not published until later. Unlike with opus numbers which were assigned depending on when the works were published, WoO numbers were assigned by genre.
Instrumental works: WoO 1–86.
Orchestral works.
"Orchestra alone"
"Concertante"
"Dances"
"Marches and dances for winds"
Chamber works.
"Without piano"
"With piano"
Piano works for 2 or 4 hands.
"Sonatas and single-movement works"
"Variations"
"Dances"
Added works: WoO 206–228.
The 2014 revision to the Kinsky catalogue, edited by Dorfmüller, Gertsch and Ronge, assigned WoO numbers to a number of works that appear in other listings. 
Works with Anhang (Anh.) and Unvollendete (Unv.) numbers.
These are works from the Appendix ("Anhang" in German) of Kinsky's catalog that were attributed to Beethoven at the time the catalog was compiled, but might not have been written by him. The 2014 revision to the Kinsky catalogue, edited by Dorfmüller, Gertsch and Ronge also introduced the category of Unvollendete (unfinished works), for several works that had previously appeared in other listings. 
Works with Hess numbers.
Works with Hess number.
These works have numbers that were assigned by Willy Hess in his catalogue of Beethoven's works. Many of the works in the Hess catalog also have WoO or Unv. numbers; those entries are not listed here.
Works with Hess Anhang (Anh.) numbers.
These are works included in the appendix of Hess's catalogue that might not be genuine works by Beethoven.
Works with Biamonti numbers.
The Italian musicologist Giovanni Biamonti compiled a chronological catalogue Beethoven's entire output known at the time, including sketches and fragments. While most of these works were already included in other catalogues, there were some that had been missed by earlier compilers. This list does not include works with opus, WoO or Hess numbers, nor does it include sketches.
There were also several projected works by Beethoven, including the operas Alessandro, Memnons Dreiklang, and Bradamante; an oratorio on a text by Meissner, an oratorio "Die Befrieung Jerusalems", and an oratorio "Die Sündflut" with text by Hammer-Purgstall.