Work The Birds comic opera in two acts Year: 1986 · Duration: 2h Instrumentation: main roles: soprano, mezzo-soprano, tenor, 2 baritones; cameo roles: mezzo-soprano, alto, baritone, bass; SATB chorus; 2 pianos, 2 synthesisers; spoken dialogue. Year: 1986 Duration: 2h Instrumentation main roles: soprano, mezzo-... John Drummond Composer Composer: John Drummond About Work About Comic opera in two acts after Aristophanes. Text note Libretto by John Drummond Related tags New Zealand Text Related works Baa, Baa, Dunkelschaf for soprano, baritone, SATB choir, strings and continuo Larnach opera in two acts for voices and fifteen players Meteorological Fugue for SATB choir Ode To Music for solo voice (or duet) and keyboard Plague Upon Eyam opera in three acts The Dawning Of The Year for soprano, baritone and piano