| Artist name | Roles | Recordings |
|---|---|---|
| Bart Claessen | ||
| Leendder | ||
| The Black Earth (UK folk rock) |
| Artist name | Roles | Recordings |
|---|---|---|
| Bart Claessen | performer | 90 Nights of Summer (Robert Burian remix) |
| Leendder | producer | Žijeme len raz |
| The Black Earth | remixer | Indigo (Robert Burian remix) |