| Abbreviation | Definition |
|---|---|
| JSB | Junior Symphony Ball |
| JSCM | Journal of Seventeenth Century Music |
| JSG | Jazz Solo Gecko |
| JSJA | John Stites Jazz Awards |
| JSMC | Japan Scandinavian Music Center |
| JSMC | JVC Smart Music Control |
| JSO | Jackson Symphony Orchestra |
| JSO | Johnstown Symphony Orchestra |
| JSPO | Jit Sin Philharmonic Orchestra |
| JSSO | Jit Sin String Orchestra |
| JSTF | Jazz Semiconductor Trusted Foundry |
| JSV | Junior Symphony of Vancouver |
| JTB | Julian Taylor Band |
| JTC | Jazz Todd Charlie |
| JTE | Jewish Theatre Ensemble |
| JTM | Jack The Music |
| JTMP | Justice Through Music Project |
| JTN | Jazz Touring Network |
| JU | Jazz Unlimited |
| JUB | Just Us Boys |