Work The Hawkeyed Sentinel opera in one act with piano accompaniment Year: 1969 · Duration: 40m Instrumentation: soprano, tenor, baritone, bass, piano Year: 1969 Duration: 40m Instrumentation soprano, tenor, baritone, b... John Drummond Composer Composer: John Drummond About Work About O.pera in one act after Cervantes Text note Libretto by John Drummond Related tags New Zealand Text Related works A Beleaguered City opera in six scenes And Grandmother Played Bridge music for a masque Baa, Baa, Dunkelschaf for soprano, baritone, SATB choir, strings and continuo Bridge to Somewhere comic opera in one act Happy Arcadia comic opera The Birds comic opera in two acts