| Artist name | Roles | Recordings |
|---|---|---|
| Georges Braunschweig | ||
| Ulf Firke | ||
| Vocal Forum Graz |
| Artist name | Roles | Recordings |
|---|---|---|
| Georges Braunschweig | ||
| Ulf Firke | ||
| Vocal Forum Graz |
| Artist name | Roles | Recordings |
|---|---|---|
| Georges Braunschweig | recording | 사랑한다는 말 |
| Ulf Firke | recording | 스톡홀름 신드롬 |
| Vocal Forum Graz | recording | 마돈나 |