| 1993 | | The Quest is a Reward |
| 1996 | | Child's View Remix |
| 1997 | | Child and Magic |
| 1998 | | Scope |
| 2000 | | Sign |
| 2001 | | Hoshi No Koe |
| 2002 | | 10th |
| 2002 | | Child's View |
| 2002 | | Hiking-Viking |
| 2002 | | Mimic Robot |
| 2002 | | Water's Suite |
| 2003 | | Assembler 2 |
| 2003 | | Songbook |
| 2007 | | Kobito No Kuni (Unreleased Tracks ~1999) |
| 2014 | | Zeitraum |
| 2015 | | Music for the exhibition "Einheit" |
| Knot of Meanings |