| 544. Marta Pereira da Costa | Guitar | 1 |
| 544. Marta Roma Tort | Cello | 1 |
| 544. Martha Wainwright | Featured Artist | 1 |
| 544. Martien Oyono | Violin | 1 |
| 544. Martin Caro | Octapad, Percussion | 1 |
| 544. Martin Cella | Backing Vocals, Guitar, Percussion | 1 |
| 544. Martin D. Fowler | Bass, Guitar, Moog | 1 |
| 544. Martin Dybal | Guitar, Music Director | 1 |
| 544. Martin Hayes & Dennis Cahill | Featured Artist | 1 |
| 544. Martin Lawson | Bass | 1 |
| 544. Martin Luther | Background Vocals, Guitar | 1 |
| 544. Martin Luther McCoy | Vocals | 1 |
| 544. Martin Shore | Percussion | 1 |
| 544. Martin Velilla | Drums | 1 |
| 544. Martin “Harrison” Finks | Keys, Vocals | 1 |
| 544. Martinez | Clarinet | 1 |
| 544. Marty Stuart | Guitar, Mandolin, Vocals | 1 |
| 544. Marty Stuart and His Fabulous Superlatives | Featured Artist | 1 |
| 544. Martín Leiton | Backing Vocals, Bass, Guitarrón, Leona | 1 |
| 544. Marvill Martin (Violinist) | Musician | 1 |
| 544. Marvin "Mickso" Deschamps | Vocals | 1 |
| 544. Marvin Dolly | Guitar | 1 |
| 544. Marvin Sapp | Featured Artist | 1 |
| 544. Mary Halvorson Quintet | Featured Artist | 1 |
| 544. Mary Voutsas | Piano | 1 |