| Artist name | Roles | Recordings |
|---|---|---|
| John Roberts (Conductor) |
| Artist name | Roles | Recordings |
|---|---|---|
| John Roberts (Conductor) |
| Artist name | Roles | Recordings |
|---|---|---|
| John Roberts | vocal | Contact, Control, Disintegrate, Echoes, Gemini, Glaciers, Painkiller, Refractor, Tracers, Waterfall |