Works by title
- X (2010), 12:21piano and system
- X-Ray Spex (2001), 2:59
- X-Scape, 4:56
- [x] génération, 16:00
- Xas (1987), 9:00saxophone quartet
- Xatys (1988), 18:25saxophones and SYTER
- Xenakis’sche Grauwacke IIIb (2017), 11:13fixed medium
- Xeno- (2017), 8:00voice and processing
- Xenoia (2017), 8:00stereo fixed medium
- xEx (1994-96), 12:00
- Xhopscintre Feed (1999)
- XIX MIKADO 2, 5:36
- Xorki, 2:05fixed medium
- Xronos (2002), 17:56videomusic3-screen video and 4-channel fixed medium
- Xylocopa Ransbecka (2017), 15:2216-channel fixed medium (Klangdom)