| ID | Interpret | Skladba | Album | |
| 1. | Die �rzte | Improvisation (live) | Berlin 02.06.1984 |  |
| 2. | Die �rzte | Improvisation (live) | Live K�ln 17.05.1994 | |
| 3. | Die ?rzte | Improvisation (live) | Berlin 02.06.1984 | |
| 4. | Not Your Average Hippy | Live Improvisation Mar 31 2006 | n/a | |
| 5. | Kenneth Koch and Allen Ginsberg | POPEYE AND WILLIAM BLAKE FIGHT TO THE DEATH (part of a live improvisation), 5/9/79, 7:52 | The World Record - Readings at the St. Mark's Poetry Project 1969-80 | |
| 6. | Kenneth Koch and Allen Ginsberg | POPEYE AND WILLIAM BLAKE FIGHT TO THE DEATH (part of a live improvisation), 5/9/79, 7:52 | The World Record - Readings at the St. Mark's Poetry Project 1969-80 | |
| 7. | Donovan, Erik, and Mark | Improvisation | | |
| 8. | Django Reinhardt | Improvisation | The Classic Early Recordings In Chronological Order - Volume 5 |  |
| 9. | Jeff Albert & Ed Barrett | Improvisation 1 | Duets Vol. 1 | |
| 10. | Jeff Albert & Ed Barrett | Improvisation 3 | Duets Vol. 1 | |
| 11. | Jeff Albert & Ed Barrett | Improvisation 2 | Duets Vol. 1 | |
| 12. | Albert, Berman, Bishop, Rempis, Stein | Improvisation | Live @ The Hungry Brain 7/22/07 | |
| 13. | CamTarn | Improvisation #2 | We Were Never Here | |
| 14. | Miles Black | Improvisation No. 1 | Miles Black | |
| 15. | Duane Frybarger | Improvisation #2 | Sketches | |
| 16. | Duane Frybarger | Improvisation #4 | Sketches | |
| 17. | Janel & Anthony | Improvisation 61 | District of Noise | |
| 18. | Janel & Anthony | Improvisation 61 | District of Noise | |
| 19. | Aska Temple | Improvisation | 青い花の主題による即興曲 | |
| 20. | John Kameel Farah | Improvisation | Works from Gibraltar Point | |
| 21. | John Kameel Farah | Improvisation | Works from Gibraltar Point | |
| 22. | Siggi Becker | Improvisation | | |
| 23. | Die Ärzte | Improvisation | Kegeln for Kreuzberg | |
| 24. | Sebastian Wolff | Improvisation #1 | Improvisations | |
| 25. | Altered States featuring Otomo Yoshihide | Improvisation #4 | Lithuania and Estonia Live | |
| 26. | Altered States featuring Otomo Yoshihide | Improvisation #2 | Lithuania and Estonia Live | |
| 27. | Sebastian Wolff | Improvisation #2 | Improvisations | |
| 28. | Duane Frybarger | Improvisation #1 | Sketches | |
| 29. | Klatzker-Corsano Duo | Improvisation No. 2 | 3 ... 2 ... 1 ... ZERO | |
| 30. | Klatzker-Corsano Duo | Improvisation No. 1 | 3 ... 2 ... 1 ... ZERO | |
