| Abbreviation | Definition |
|---|---|
| HJC | Halstead Jazz Club |
| HJSC | Honda Jazz Speed Challenge |
| HKCO | Hong Kong Chinese Orchestra |
| HKMI | Hong Kong Music Institute |
| HKPO | Hong Kong Philharmonic Orchestra |
| HKR | Hare Krsna Records |
| HKS | Hong Kong Sinfonietta |
| HLCB | High Life Cajun Band High Life Cajun Band |
| HLCT | Hellcat Records |
| HM | Hard Music |
| HM | Headbangin Moshpit |
| HM | Heavy Metal |
| HM | Hidden Music |
| HMAC | House of Music Arts and Culture |
| HMB | Heber Marques Band |
| HMC | Heavy Metal Club |
| HMFB | Heart of Midlothian Flute Band |
| HMR | Heavy Metal Rock |
| HMSC | His Majesty's Sagbutts & Cornetts |
| HMSL | Hierarchical Music Specification Language |