| 584. Matthew Rippetoe | Sax, Trumpet | 1 |
| 584. Matthew Romy | Keys | 1 |
| 584. Matthew Simms | Guitar | 1 |
| 584. Matthew Stoessel | Guitar, Pedal Steel | 1 |
| 584. Matthew Thudium | Guitar, Vocals | 1 |
| 584. Matty Meyer | Drums | 1 |
| 584. Maureen Dunne | Cello | 1 |
| 584. Maurice "Mobetta" Brown (trumpet) | Musician | 1 |
| 584. Maurice Fitzgerald | Bass | 1 |
| 584. Maurice Smith | Vocals | 1 |
| 584. Mauricio Guerrero, Jr | Guitar | 1 |
| 584. Mauricio Ramírez Echeverri | Drums | 1 |
| 584. Mauricio Zotarelli | Drums | 1 |
| 584. Mauro Refosco | Music Director, Percussion | 1 |
| 584. Maverick City Music | Featured Artist | 1 |
| 584. Mavis Staples | Featured Artist | 1 |
| 584. Mawuena Kodjovi | Backing Vocals, Bass | 1 |
| 584. Max Abrams | Saxophone | 1 |
| 584. Max Bassin | Drums | 1 |
| 584. Max Bernstein | Guitar | 1 |
| 584. Max Brown | Guitar | 1 |
| 584. Max Bryk | Flute, Keys, Saxophone | 1 |
| 584. Max Jaffe | Drums | 1 |
| 584. Max Levinson | Piano | 1 |
| 584. Max Luthert | Upright Bass | 1 |