Clarinet/bass-clarinet
2002 Clarinet Concerto ( 16' ). P
1975 Incantations ( 13' ); for bass clarinet. D
1969 Scaramuccia ( 11' ); for clarinet and chamber orchestra. D

Horn(s)
1976 Orbits ( 18' ); for horn solo, 4 horns obligato and orchestra. D

Djembe
1996 A Dramé ( 16' ); for djembe and ensemble. P

Violin
1998 Violin Concerto “Vanishing Dances” ( 23' ). P

Piano
1995/96 Concerto for Piano and Orchestra ( 20' ). P

Voice(s)
2002 Naima Suite II ( 40' ); for mezzo-soprano, tenor and bass-baritone, choir and orchestra. P
2001 Suite from the opera Johnny & Jones ( 25' ); for mezzo-soprano, tenor, baritone and orchestra. P
1987 Oh oor o hoor ( 18' ); for bass-baritone , five poems by Lucebert. D
1985 Two songs ( 6' ); for mezzo-soprano and 8 instruments, from the opera “Naima”(1985). D
1981 The Nightingale ( 35' ); version for narrator and orchestra, (1974 - 1979), text by Hans Christian Andersen. P
1979 The Nightingale ( 35' ); version for narrator and 7 instruments (1974 - 1979)
*also versions in Dutch, German and French. P
1977 Six Turkish folkpoems ( 17' ); for female voice and 7 instruments. D

Improvising soloist and orchestra/ensemble
2004 The five drives (12); for improvisor and orchestra. P
2003 De 5 Driften ( 12' ); for improvising soloist and symphony orchestra. P
1991 Bons ( 8' ); for improvisor and 11 instruments (or chamber orchestra). P