Instrumentation
The symphony is scored for 3 flutes (3rd doubling piccolo), 3 oboes (3rd doubling cor anglais), 3 clarinets (3rd doubling bass clarinet), 3 bassoons (3rd doubling contrabassoon), 4 horns, 3 trumpets, 3 trombones, tuba, timpani, triangle, snare drum, cymbals, orchestral bass drum, tam-tam, xylophone, tubular bells, 2 harps (preferably doubled), celesta and strings.
Read more about this topic: Symphony No. 11 (Shostakovich)