| Artist name | Roles | Recordings |
|---|---|---|
| Paolo Costa (countertenor) | ||
| John Abernathy (ex main songwriter/guitarist from Conducting From the Grave) |
| Artist name | Roles | Recordings |
|---|---|---|
| Paolo Costa | vocal | Angel’s Love, More Than Lemonade |
| John Abernathy | vocal | Mother Universe (trailer version) |