Koyasu Takehito CDs (singles)
Takehito appears (sings/talks) in the following CD singles.
| 1996.07.mid | Tomo in Hungry Land | Talk |
| 1996.12.04 | Open Sesame (PCDB-007) | Song {duet} |
| 1997.03.05 | Angelique Shugosei Collection 6 -Olivier (KEDH-1009) | Song/Talk |
| 1997.05.21 | Mecha Hajikete Guts Tobashite (TYDY-2085) | Song |
| 1998.01.21 | Beautiful Alone [Weiss] (MMDM-1001) | Song |
| 1998.05.21 | Velvet Underworld [Weiss] (MMDM-1002) | Song |
| 1998.08.05 | Piece of Heaven [Weiss] (MMDM-1003) | Song |
| 1998.08.21 | It's Too Late [Weiss] (MMDM-1004) | Song |
| 1999.01.?? | Yuukyuu Gensoukyoku character series 7 (PCDB-015) | Song |
| 1999.09.21 | No Reason/Mellow Candle [Weiss] (MMDM-1006) | Song |
| 2002.03.21 | Gluhen [Weiss] (MMCC-1029) | Song |
| 2002.03.21 | Stone Roses [Weiss] (MMCC-1030) | Song |
| 2008.11.26 | Rosario to Vampire CAPU2 Character Song 7 (KICM-3183) | Song |