| Artist | Active | Genre & Styles |
|---|---|---|
| Robert Stewart | 1990s - 2020s | Jazz, Classical, Post-Bop, Chamber Music, Vocal Music, Keyboard |
| Bob Stewart | 1960s - 2020s | Jazz, Pop/Rock, Bop, Post-Bop, Show/Musical |
| Hakki Bulut | International | |
| Johnny Cymbal | 1960s - 1980s | Pop/Rock, Early Pop/Rock, Teen Idols |