| Artist name | Roles | Recordings |
|---|---|---|
| Mindheart | producer | Amor y desengaño (instrumental), Old School, Old School (instrumental) |
| Hijo Pródigo | vocal | Old School, Old School (acapella) |
| Artist name | Roles | Recordings |
|---|---|---|
| Linda Biancaniello | saxophone | Boom Shaka Lacka, Kui tansuhallis möllab ska! |
| Röövel Ööbik | saxophone | Päike Maa (Erostratos) |
| The Casket Girls | saxophone | Idüll |