the tuba is a member of what instrument family
Tuba The tuba (UK: /ˈtjuːbə/ or US: /ˈtuːbə/;[1] Italian pronunciation: [ˈtuːba]) is the largest and lowest-pitched musical instrument in the brass family. Like all brass instruments, sound is produced by moving air past the lips, causing them to vibrate or "buzz" into a large cupped mouthpiece. It first appeared in the mid 19th-century, making it one of the newer instruments in the modern orchestra and concert band. The tuba largely replaced the ophicleide.[2] Tuba is Latin for 'trumpet'.[3]
The Planets The work is scored for a large orchestra consisting of four flutes (third doubling first piccolo and fourth doubling second piccolo and "bass flute in G", actually an alto flute),[24] three oboes (third doubling bass oboe), one English horn, three clarinets in B♭ and A, one bass clarinet in B♭, three bassoons, one contrabassoon; six horns in F, four trumpets in C, two trombones, one bass trombone, one tenor tuba in B♭ (actually a euphonium scored for treble clef), one bass tuba; a percussion section with six timpani (requiring two players), bass drum, snare drum, cymbals, triangle, tam-tam, tambourine, glockenspiel, xylophone, tubular bells; celesta, pipe organ; 2 harps and strings. In Neptune, two three-part women's choruses (each comprising two sopranos and one alto) located in an adjoining room which is to be screened from the audience are added.