| Artist name | Roles | Recordings |
|---|---|---|
| Regina Spektor | ||
| David Gray (British singer/songwriter) |
| Artist name | Roles | Recordings |
|---|---|---|
| Regina Spektor | ||
| David Gray (British singer/songwriter) |
| Artist name | Roles | Recordings |
|---|---|---|
| Regina Spektor | strings | Somedays, Us |
| David Gray | strings | Babylon II |