| Abbreviation | Definition |
|---|---|
| ICSO | Imperial College Symphony Orchestra |
| ICSQ | Israel Contemporary String Quartet |
| ICUM | Iron City Underground Music |
| ICWM | International Congress for Women in Music |
| IDC | Indecent Disco Children |
| IDM | Inhibits Dancing Music |
| IDM | Intelligent Dance Music |
| IDM | Intelligent Drum Music |
| IDM | Interesting Dance Music |
| IDM | International Dork Music |
| IDMA | International Dance Music Awards |
| IDMA | International Department of Music Arts |
| IDMF | International Dance Music Fair |
| IDMI | International Drum Majors Institute |
| IDSW | I Drink Sausage Water |
| IDTTB | I Don't Trust These Bi*ches |
| IE | Instrumental and Ensemble |
| IEBB | Ian English Boodlum Band |
| IEMA | Internationale Ensemble Modern Akademie |
| IFCM | International Federation for Choral Music |