| Artist name | Roles | Recordings |
|---|---|---|
| Katri Ylander | ||
| Tarja (Finnish singer Tarja Turunen) |
| Artist name | Roles | Recordings |
|---|---|---|
| Katri Ylander | ||
| Tarja (Finnish singer Tarja Turunen) |
| Artist name | Roles | Recordings |
|---|---|---|
| Katri Ylander | producer, programming, piano | Onko vielä aikaa? |
| Tarja | keyboard | Sing for Me |