| Artist name | Roles | Recordings |
|---|---|---|
| Helmut Zacharias Quartett | ||
| Acid Daddy (breakbeat) |
| Artist name | Roles | Recordings |
|---|---|---|
| Helmut Zacharias Quartett | violin | Be-Bop Nr. 1, Be-Bop Nr. 2, Just a Gigolo, St. Louis Blues |
| Acid Daddy | violin | Helmy's Be-Bop Nr. 3, Honeysuckle Rose |