2001 Johnny & Jones ( 65' ); chamber opera for 3 singers and ensemble (12 players),
on a libretto by Carel Alphenaar conceived by the composer . P

1994 Esmée ( 105' ); opera in 2 acts (1987-1994),
libretto by Jan Blokker. P

1992 Korenslagvaardigheidscantate ( 10' ); for 80.000 singers, text by Theo Loevendie. Ms

1990 Gassir, the Hero ( 35' ); chamber opera in 7 scenes,
libretto by Theo Loevendie after an African saga. P audio

1985 Naima ( 105' ); opera in three acts,
libretto by Lodewijk de Boer. D

1983 Music for a Strange Wedding ( 10' ); for orchestra,
choreographic scene from the opera “Naima” (1985). D

1972 Apocalyps ( 50' ); music theatre production in cooperation with “Studio Laren“. Ms

1971 ¡Esperanza! ( 60' ); opera for and by young people;
composed in cooperation with Bernard van Beurden, libretto by Mies Bouhuys. Ms