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 Bridge to Somewhere comic opera in one act Cinderella music for a pantomime Goethe's Faust incidental music La Vie En France theme and incidental music The Stars in Orion opera Voices for soprano, tenor and harpsichord