| Artist name | Roles | Recordings |
|---|---|---|
| Perterricrepus | ||
| Topaz (melodic rock trio from Chicago) |
| Artist name | Roles | Recordings |
|---|---|---|
| Perterricrepus | ||
| Topaz (melodic rock trio from Chicago) |
| Artist name | Roles | Recordings |
|---|---|---|
| Perterricrepus | producer | Not Above Love |
| Topaz | producer | Big Big World (album version) |