Works

1. 1963

   Four Canons for Two Clarinets

   2 clarinets, 8'

   Premiere: Los Angeles, 1963

   Score: Not available
2. 1963–64

   String Trio

   violin, viola, cello, 10'

   Premiere: Los Angeles, 1964

   Score: Musikarchiv, Akademie der Künste, Berlin
3. 1965

   Study for Orchestra

   orchestra, 8'

   Premiere: Provo, 1965

   Score: Musikarchiv, Akademie der Künste, Berlin
4. 1965

   Divergences

   piano with 2 violins, 2 violas, 2 cellos, 8'

   Premiere: San Francisco, 1965

   Score: Musikarchiv, Akademie der Künste, Berlin
5. 1966

   Cadenza

   string quartet, 6'

   Premiere: Oeldorf, 1971 (WDR studio recording, 1966)

   Score: From the composer
6. 1967–70

   Decay for Eight French Horns

   8 French horns, 23'

   Premiere: Utrecht, 1970

   First prize, Gaudeamus International Composers Competition, Amsterdam, 1971.

   Recorded: edition rz (2008)

   Score: Musikarchiv, Akademie der Künste, Berlin
7. 1969–74

   Frieze for Four Pianos

   4 pianos, 23'

   Premiere: Paris, 1975

   Recorded: Edition Michael Frauenlob Bauer (1987); edition rz (2008)

   Score: From the composer
8. 1975

   108 Pulses

   fixed media

   Recorded: Unseen Worlds UW036
9. 1975–76

   Pulse Music I

   fixed media, 21'40"

   Premiere: Cologne, 1977

   Recorded: Feedback Studio Verlag Köln (2001); Unseen Worlds UW036
10. 1975–77

    Pulse Music II

    4 pianos and chamber orchestra, 20'30"

    Premiere: Bremen, 1978

    Recorded: Unseen Worlds UW036

    Score: From the composer
11. 1976–80

    Forty-Eight Variations for Two Pianos

    2 pianos, 58'

    Premiere: Cologne, 1980

    Recorded: Largo Records (1987)

    Score: Breitkopf & Härtel, Wiesbaden
12. 1978–79

    Pulse Music III

    fixed media, 24'10"

    Premiere: Cologne, 1979

    Recorded: Edition Michael Frauenlob Bauer (1987); Sargasso (2002); Unseen Worlds UW036
13. 1981

    Music for Horns, Pianos and Cymbals

    4 French horns, 2 pianos, 2 cymbal players, 14'

    Premiere: Cologne, 1982

    Recorded: edition rz (2008)

    Score: Breitkopf & Härtel, Wiesbaden
14. 1982–85

    Cadence Music

    2 flutes, 2 oboes, 2 clarinets, 2 bassoons, horn, 2 pianos, 12 tunable tom-toms, vibraphone, celesta, 2 violins, 2 violas, 2 cellos, double bass, 25'

    Premiere: Cologne, 1985

    Recorded: edition rz (2008)

    Score: Breitkopf & Härtel, Wiesbaden
15. 1985–88

    Vanishing Points

    fixed media, 25'45"

    Premiere: Cologne, 1989

    Recorded: Sargasso (2002); Unseen Worlds UW038; Wolke Verlag (2023)
16. 1990–97

    A Cappella

    soprano and fixed media (no text), 24'54"

    Premiere: Cologne, 1997

    Recorded: Sargasso (2002); Unseen Worlds UW038

    Score: From the composer
17. 1998–2002

    Exchanges

    soprano and string quartet (no text), 16'30"

    Premiere: Berlin, 2005

    Recorded: edition rz (2008)

    Score: From the composer
18. 2004–05

    Ordinary Measures

    6 mixed voices (no text)

    Premiere: Dartmouth, 2007

    Unfinished.

    Score: Not available
19. 2006–09

    Marking Time

    2 chamber orchestras (21 players), 19'30"

    Premiere: Berlin, 2010

    Score: From the composer
20. 2009–12

    Jump Cuts

    double string trio, 18'40"

    Premiere: Frankfurt, 2014

    Recorded: Unseen Worlds UW063

    Score: From the composer
21. 2013–16

    Double Bars

    double string trio, 20'40"

    Premiere: Cologne, 2023

    Recorded: Unseen Worlds UW063

    Score: From the composer
22. 2016–19

    Playground

    double string trio, 15'50"

    Premiere: Cologne, 2023

    Recorded: Unseen Worlds UW063

    Score: From the composer
23. 2020–23

    Crossways

    2 violins, 2 cellos, 20'40"

    Score: From the composer
24. 2023–24

    Twelve Circles

    piano, 11'50"

    Premiere: London, 2025

    Score: From the composer
25. 2024

    Framework

    string quartet, 15'10"

    Score: From the composer
26. 2025–26

    Clockwork 360

    3 clarinets, string trio, piano, 18'

    Score: From the composer