| Artist name | Roles | Recordings |
|---|---|---|
| Red Hot Chili Peppers | ||
| J. Petroschof (conductor (possibly another Alfred Scholtz pseudonym)) |
| Artist name | Roles | Recordings |
|---|---|---|
| Red Hot Chili Peppers | ||
| J. Petroschof (conductor (possibly another Alfred Scholtz pseudonym)) |
| Artist name | Roles | Recordings |
|---|---|---|
| Red Hot Chili Peppers | vocal | Good Time Boys, Higher Ground |
| J. Petroschof | vocal | I Fought the Law |