1 by Ludwig van Beethoven)* "Reconstructie" (1969) (with Reinbert de Leeuw, Misha Mengelberg, Peter Schat, Jan van Vlijmen, libretto by Hugo Claus, Harry Mulisch) Morality opera for soloists, 3 mixed choruses (4 voices each), orchestra (11 winds, 7 brass, 2 guitars, 11 keyboards, 10 strings), live electronics* "De negen symfonieën van Beethoven" (1970) for ice cream bell, orchestra* "Spektakel" (1970) for improvisational ensemble (saxophone [+ bass clarinet], viola, bass guitar, electronic organ [+ piano], percussion other instruments), small orchestra (12 winds, 4 horns, 6 percussion)* "Vergeet mij niet" (1970) (Forget me not) for oboe* "La voile du bonheur" (1966–1971) for violin and piano* "een, twee" (1971) for organ, 10 instrumentalists and piano* "In Memoriam" (1971) for tape* "Volkslied" (1971) for an unlimited amount and kinds of instruments (in all octaves) (based on the Dutch national anthem "Wilhelmus van Nassouwe" and on The Internationale)* "De Volharding" (1972) (Perseverance) for piano and wind instruments (written for Orkest de Volharding)* "Dat gebeurt in Vietnam" (1972) (That's going on in Vietnam) for wind ensemble* "Arrangement of Solidaritätslied by Hanns Eisler" (1972) for wind ensemble* "Arrangement of Streikslied by Hanns Eisler" (1972) for wind ensemble* "Arrangement of In C by Terry Riley" (1972) for wind ensemble* "Arrangement of Bereits sprach der Welt by Hanns Eisler" (1972) for wind ensemble* "Arrangement of Tango by Igor Stravinsky" (1972) for wind ensemble* "Arrangement of La création du monde by Darius Milhaud" (1972) for wind ensemble* "Thanh Hoa" (1972) (text by Nguyen Thai Mao) for voice and piano* "Canzone 3.Utinam" (1972) (text from the Book of Job) for soprano, piano, 1962; Thanh Hoa (text by Nguyen Thay Mao), voice, piano* "On Jimmy Yancey" (1973) for 9 winds, piano and double bass (written for Orkest de Volharding)* "Voor Sater" (1973) for wind ensemble* "Amsterdam Vrij" (1973) for wind ensemble* "Il Duce" (1973) for tape* "The family" (1973) for ensemble (film music)* "Melodie" (1972–1974) for alto recorder (or other flute) and piano* "Arrangement of Ipanema and Gavea from Saudades do Brasil by Darius Milhaud" (1974) for wind ensemble* "Il Principe" (1974) (text by Niccolò Machiavelli) for 2 mixed choruses, 8 winds, 3 horns, tuba, bass guitar, piano* "Wals" (1974) for piano* "Symfonieën der Nederlanden" (1974) for 2 or more symphonic bands (minimum 32 players)* "Nederland, let op uw schoonheyt" (1975) for symphonic band* "Workers Union" (1975) for any loud-sounding group of instruments* "De Staat" (1972–76) (text by Plato) for 2 sopranos, 2 mezzo-sopranos, 4 oboes (3rd, 4th + English horn), 4 horns, 4 trumpets, 3 trombones, bass trombone, 2 harps, 2 electric guitars, 4 violas, bass guitar, 2 pianos (also transcribed for two pianos in 1992 by Cees van Zeeland and Gerard Bouwhuis)* "Mattheus passie" (1976) (text by Louis Ferron) Music theatre work for 8 mixed voices, 2 oboes (both + English horn), Hammond organ, string quartet, double bass* "Hoketus" (1975–76) for 2 panpipes, 2 alto saxophones ad libitum, 2 bass guitars, 2 pianos, 2 electric pianos, 2 congas* "Orpheus" (1977) (text by Lodewijk de Boer) Music theatre work for 8 mixed voices, lyricon, electric guitar, bass guitar, synthesizer, percussion* "Symphonie voor losse snaren" (1978) for 12 strings* "Laat toch vrij die straat" (1978) (text by Jaap van der Merwe) for voice and piano* "Hymne to the Memory of Darius Milhaud" (1978) (version of chamber work)* "Felicitatie" (1979) for 3 trumpets* "Toespraak" (1979) for speaker who also plays trombone* "Mausoleum" (1979 rev.
* Nuit d'été (1957) for piano 4 hands* Séries (1958) for 2 pianos* Nocturnen (1959) (text by the composer) for 2 sopranos, orchestra* Trois Pièces (1961) for piano left hand* Ittrospezione I (1961) for piano 4 hands* Joli commentaire (1961) for piano 4 hands* Étude pour les timbres (1962) for piano* Triplum (1962) for guitar* Ittrospezione II (1963) for large orchestra* Registers (1963) for piano* Ittrospezione III (Concept II) — Fragment (1965) tenor saxophone ad libitum, 2 pianos (section of Ittrospezione III II; may be performed separately)* Souvenirs d’enfance (1966) for piano* Anachronie I (1966-67) for large orchestra* The Garden of Ryoan-gi (1967) for 3 electronic organs* Choralvorspiele (1969) for barrel organ* Anachronie II (1969) for oboe, small orchestra, 1969; Hoe het is, 52 strings, live electronics* Reconstructie (1969) (with Reinbert de Leeuw, Misha Mengelberg, Peter Schat, Jan van Vlijmen, libretto by Hugo Claus, Harry Mulisch) Morality opera for soloists, 3 mixed choruses (4 voices each), orchestra (11 winds, 7 brass, 2 guitars, 11 keyboards, 10 strings), live electronics* De negen symfonieën van Beethoven (1970) for ice cream bell, orchestra* Spektakel (1970) for improvisational ensemble, small orchestra (12 winds, 4 horns, 6 percussion)* In Memoriam (1971) for tape* Canzone 3.Utinam (1972) (text from the Book of Job) for soprano, piano, 1962; Thanh Hoa (text by Nguyen Thay Mao), voice, piano* Il Duce (1973) for tape* Il Principe (1974) (text by Niccolo Machiavelli) for 2 mixed choruses, 8 winds, 3 horns, tuba, bass guitar, piano* Wals (1974) 1974 for piano* Symfonieën der Nederlanden (1974) for 2 or more symphonic bands (minimum 32 players)* De Staat (1972-74) (text by Plato) for 2 sopranos, 2 mezzo-sopranos, 4 oboes (3rd, 4th + English horn), 4 horns, 4 trumpets, 3 trombones, bass trombone, 2 harps, 2 electric guitars, 4 violas, bass guitar, 2 pianos* De Staat (1972-76) for 2 pianos (version of vocal work)* Nederland, let op uw schoonheyt (1975) for symphonic band* Workers Union (1975) for any loud sounding group of instruments* Mattheus passie (1976) (text by Louis Ferron) Music theatre work for 8 mixed voices, 2 oboes (both + English horn), Hammond organ, string quartet, double bass* Hoketus (1975-76) for 2 panpipes, 2 alto saxophones ad libitum, 2 bass guitars, 2 pianos, 2 electric pianos, 2 congas* Orpheus (1977) (text by Lodewijk de Boer) Music theatre work for 8 mixed voices, lyricon, electric guitar, bass guitar, synthesizer, percussion* Symphonie voor losse snaren (1978) for 12 strings* Laat toch vrij de straat (1978) (text by Jaap van der Merwe) for voice, piano* Hymne to the Memory of Darius Milhaud (1978) (version of chamber work)* Felicitatie (1979) for 3 trumpets* Mausoleum (1979 rev.