| Artist name | Roles | Recordings |
|---|---|---|
| Park Hill (jazz guitarist) | ||
| Gruff Rhys | ||
| The Gentle Good (Stage name of Gareth Bonello) |
| Artist name | Roles | Recordings |
|---|---|---|
| Park Hill (jazz guitarist) | ||
| Gruff Rhys | ||
| The Gentle Good (Stage name of Gareth Bonello) |
| Artist name | Roles | Recordings |
|---|---|---|
| Park Hill | arranger, vocal arranger | Ambell Hiraeth, Breuddwyd y Bardd, Heno, Si Hwi Hwi |
| Gruff Rhys | vocal | 100 Unread Messages |
| The Gentle Good | vocal | Marwnad Chang-Kan |