| MISCHA | 0 | 0 |
| MISLIAR | 0 | 0 |
| MISSING NO. | 0 | 0 |
| MIT Festival Jazz Ensemble | 0 | 0 |
| MIT Symphony Orchestra | 0 | 0 |
| MIT Wind Ensemble | 0 | 0 |
| MITRO | 0 | 0 |
| MJK | 0 | 0 |
| MK | 3 | 0 |
| MK | 0 | 0 |
| MM44 TURBO SHITPOST MACHINE | 0 | 0 |
| MNDR | 2 | 0 |
| MNEK | 2 | 0 |
| MO | 0 | 0 |
| MO3 | 3 | 0 |
| MOB Trio | 0 | 0 |
| MOCNO | 0 | 0 |
| MOD | 0 | 0 |
| MODYSSEY | 0 | 0 |
| MOKA☆ | 3 | 0 |
| MONACA | 2 | 0 |
| MONO NO AWARE | 0 | 0 |
| MONSTA X | 0 | 0 |
| MONTAGEM | 0 | 0 |
| MORTEN | 1 | 0 |
| MOSAIC | 0 | 0 |
| MOSAIC.WAV | 17 | 0 |
| MOTOR | 5 | 0 |
| MOTTE | 0 | 0 |
| MOTTO MUSIC | 0 | 0 |
| MOUTH BREAKER | 0 | 0 |
| MOVIEGUITARDUO | 0 | 0 |
| MP | 0 | 0 |
| MPB4 | 0 | 0 |
| MPC GIRL USAGI | 0 | 0 |
| MPU101 | 0 | 0 |
| MRKBH x Rico James | 0 | 0 |
| MSBR | 0 | 0 |
| MTD | 7 | 0 |
| MTSCA | 0 | 0 |
| MUDA | 0 | 0 |
| MURASAKI | 2 | 0 |
| MUSQIS | 0 | 0 |
| MV & EE | 0 | 0 |
| MVSTERIOUS | 0 | 0 |
| MVT | 0 | 0 |
| MVW | 0 | 0 |
| MW:MEU | 0 | 0 |
| MX LONELY | 0 | 0 |
| MXPAL | 0 | 0 |
| MXRCIZ | 0 | 0 |
| MXTXL | 0 | 0 |
| MYRONE | 0 | 0 |
| MYTCH | 0 | 0 |
| MYTH | 0 | 0 |
| MYTHOS | 0 | 0 |
| Ma Yue | 1 | 0 |
| MaMaMa | 0 | 0 |
| MaNDRAa | 0 | 0 |
| Maacha Deubner | 0 | 0 |
| Maagine Beats | 0 | 0 |
| Maarika Järvi | 5 | 0 |
| Maarten Altena | 0 | 0 |
| Maarten Bon | 0 | 0 |
| Maarten Engeltjes | 0 | 0 |
| Maarten Koningsberger | 4 | 0 |
| Maarten Michielsen | 2 | 0 |
| Maastricht Conservatory Chamber Choir | 1 | 0 |
| Mabel | 2 | 0 |
| Mabel Kwan | 0 | 0 |
| Mabisyo | 0 | 0 |
| Mac | 8 | 0 |
| Mac Critter | 0 | 0 |
| Mac Davis | 0 | 0 |
| Mac Mall | 9 | 0 |
| Mac McClure | 0 | 0 |
| Mac Quayle | 0 | 0 |
| Mac Snow | 0 | 0 |
| Mac Wellman | 0 | 0 |
| Mac Wetha | 0 | 0 |
| Macao Orchestra | 0 | 0 |
| Macao Youth Choir | 0 | 0 |
| Macapella | 0 | 0 |
| Macarena Martínez | 0 | 0 |
| Maccabeez | 0 | 0 |
| Macedonian Radio Symphonic Orchestra | 1 | 0 |
| Maceo | 1 | 0 |
| Maceo Parker | 0 | 0 |
| Macha | 3 | 0 |
| Macha Méril | 0 | 0 |
| Machacha | 0 | 0 |
| Machiko Takahashi | 0 | 0 |
| Machine Mass | 0 | 0 |
| MachineCode | 0 | 0 |
| Machinefabriek | 71 | 0 |
| Machinery of the Human Heart | 0 | 0 |
| Machito and His Orchestra | 0 | 0 |
| Machynlleth | 0 | 0 |
| Maciej Niesiołowski | 0 | 0 |
| Maciej Tworek | 0 | 0 |