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 Autumn Hath All The Summer's Fruitful Treasure for mezzo-soprano, unison male voices and piano Baa, Baa, Dunkelschaf for soprano, baritone, SATB choir, strings and continuo Benedictions for treble solo, SATB choir and keyboard Impersonating Maurice salon opera in three scenes Orlando music for a masque The Stars in Orion opera