- De Materie (1984-88)sopranos, tenor, female narrator, chamber chorus and orchestra
- Part I (“De Materie”) (1986-87)solo tenor, 8 voices and large ensemble
- Part II (“Hadewijch”) (1987-88)solo soprano, 8 voices and large ensemble
- Part III (“De Stijl”) (1984-85), 25:00spoken female voice, 4 female voices and large ensemble
- Part IV (1988)female narrator, 8 voices and large ensemble
- De Staat (1973-76), 35:004 female voices, 4 oboes, 4 horns, 4 trumpets, 4 trombones, 2 electric guitars, electric bass, 2 harps, 2 pianos and 4 violas
- Hoketus (1975-77)panpipes, alto saxophone, bass guitar, Yamaha DX-7 synthetizer, piano and percussion
