InstrumentationSolo roles: Luca (soprano); Irén, the old housekeeper (mezzo-soprano); Old Lady, Luca’s mother-in-law (alto); János, her son (lyric tenor); Luca’s mother (mezzo-soprano); Guard (speaking role); Second Prisoner (speaking role and tenor); Sergeant (speaking role); Doctor (bass).
Chorus: SMATBB (prisoners, prison guards, co-tenants and everyday people).
Orchestra: 3 flutes (III doubling piccolo); 3 oboes (I doubling alto recorder, II doubling tenor recorder, III doubling tenor recorder and cor anglais); 3 B-flat clarinets (I and II doubling harmonica, III doubling harmonica and B-flat bass clarinet); 3 bassoons (III doubling contrabassoon); 4 horns in F, 2 trumpets in C, 2 trombones, tuba; timpani and percussion (4 players: suspended cymbal, bass drum, thundersheet, egg shaker, maracas, sandpaper blocks, 3 bongos, glockenspiel, triangle, onstage bell/ring, tam-tam, vibraphone also played with a bow, 3 cowbells, small snare drum, large snare drum, 2 timbales, anvil, bowed waterphone, whip, gong, crotales, 3 different metal instruments, 3 different wooden instruments, timpani); harp; one keyboard player (celesta and organ); strings (violin I, violin II, violas and violoncelli each divisi up to 5; double basses).