| Artist name | Roles | Recordings |
|---|---|---|
| Matti Johannes Koivu | ||
| Willow (Austrian band) | ||
| 橘井健一 |
| Artist name | Roles | Recordings |
|---|---|---|
| Matti Johannes Koivu | ||
| Willow (Austrian band) | ||
| 橘井健一 |
| Artist name | Roles | Recordings |
|---|---|---|
| Matti Johannes Koivu | cello | Kalastaja, Laulu pohjoisesta, Tunnen muuttuvan maan |
| Willow | cello | More Life |
| 橘井健一 | bass | Yö tasangolla |