| Artist name | Roles | Recordings |
|---|---|---|
| Charles Webster | ||
| Federico Mengoli |
| Artist name | Roles | Recordings |
|---|---|---|
| Charles Webster | ||
| Federico Mengoli |
| Artist name | Roles | Recordings |
|---|---|---|
| Charles Webster | vocal | I Understand You, I'm Falling, Sweet Butterfly |
| Federico Mengoli | vocal | Sweet Butterfly |