| Artist name | Roles | Recordings |
|---|---|---|
| Czesław Bartkowski | ||
| Simon (Russian power electronics) |
| Artist name | Roles | Recordings |
|---|---|---|
| Czesław Bartkowski | ||
| Simon (Russian power electronics) |
| Artist name | Roles | Recordings |
|---|---|---|
| Czesław Bartkowski | producer | I Love the Islands |
| Simon | producer | Rock & Sway |