| Artist name | Roles | Recordings |
|---|---|---|
| George Del Barrio |
| Artist name | Roles | Recordings |
|---|---|---|
| George Del Barrio |
| Artist name | Roles | Recordings |
|---|---|---|
| George Del Barrio | engineer | It's About Time, Nomades, Twin Dialogue, Ulrich, Ulrich, der Wagen bricht! (Dedicated to Peter Kowald), Unwritten Messages, Waltz For Lois |