| Abbreviation | Definition |
|---|---|
| JP | Jazz Producer |
| JPC | Jazz Pop And Classical |
| JPCO | Japan Popular Classics Orchestra |
| JPG | Justin Paul Goodrich |
| JPL | Jon Peter Lewis |
| JPMC | Jane Peterer Music Corporation |
| JPMC | John Payne Music Center |
| JPO | Johannesburg Philharmonic Orchestra |
| JPOP | Japanese Pop |
| JPOP | Japanese Pop music |
| JQ | Jamiroquai |
| JR | Jazz Rock |
| JR | Just Rehearsing |
| JRAC | Jazz Record Art Collective |
| JRMP | Journal of Research in Music Performance |
| JRO | Junior Repertory Orchestra |
| JSAM | Journal of the Society for American Music |
| JSB | Jazz Sebastian Bach |
| JSB | Jimmy Swift Band |
| JSB | Jr Symphony Ball |