| Artist name | Roles | Recordings |
|---|---|---|
| Ralph Ruvin | ||
| THE UNCOLOURED |
| Artist name | Roles | Recordings |
|---|---|---|
| Ralph Ruvin | ||
| THE UNCOLOURED |
| Artist name | Roles | Recordings |
|---|---|---|
| Ralph Ruvin | double bass | March for the Regiment Graf Lottum |
| THE UNCOLOURED | double bass | Singspiel "Erwin und Elmire" (excerpt) |