| MacDowell, Edward@ (15) |
| Mancini, Henry@ (9) |
| Manziarly, Marcelle de@ (2) |
| Marsalis, Wynton@ (9) |
| Marshall, Ingram@ (3) |
| Martinez, Odaline de la@ (3) |
| Martino, Donald@ (8) |
| Martirano, Sal@ (6) |
| Masaoka, Miya@ (3) |
| Mason, Daniel Gregory@ (2) |
| Mason, Lowell@ (9) | |
| Mathews, Max@ (7) |
| Maw, Nicholas@ (7) |
| McPhee, Colin@ (9) |
| Mechem, Kirke@ (4) |
| Menotti, Gian Carlo@ (3) |
| Monk, Meredith@ (2) |
| Moondog@ (9) |
| Moore, Douglas@ (6) |
| Moore, Undine Smith@ (3) |
| Mumma, Gordon@ (2) |
| Musgrave, Thea@ (3) | |