Disc1
| 1 | Alto Improvisation No.1 | 阿部薫 | 2:35 |
| 2 | Alto Improvisation No.2 | 阿部薫 | 11:39 |
| 3 | Alto Improvisation No.3 | 阿部薫 | 12:24 |
Disc2
| 1 | Sopranino Improvisation No.1 | 阿部薫 | 6:17 |
| 2 | Alto Improvisation No.4 Part 1 | 阿部薫 | 2:01 |
| 3 | Alto Improvisation No.4 Part 2 | 阿部薫 | 16:32 |
| 4 | Sopranino Improvisation No.2 | 阿部薫 | 7:14 |