| Abbreviation | Definition |
|---|---|
| PRIMA | Pacific Rim Institute of Musical Arts |
| PRIME | Pride Radiates In Music Education |
| PRISMA | Pacific Region International Summer Music Academy |
| PRISMA | Pacific Region International Summer Music Association |
| PRJ | Patti Rutland Jazz |
| PRMM | Public Radio Music Month |
| PRMS | Public Radio Music Source |
| PRO | Punk Rock Orchestra |
| PRSB | Piper Road Spring Band |
| PRSO | Puerto Rico Symphony Orchestra |
| PRYSM | Philadelphia Region Youth String Music |
| PSC | Pink Skunk Crew |
| PSMB | Pitch synchronous multi band |
| PSMD | Piedmont School of Music and Dance |
| PSMD | Printed Sacred Music Database |
| PSMP | Pasadena Suzuki Music Program |
| PSMV | Pitch Shifter Music View |
| PSO | Pittsburgh Symphony Orchestra |
| PSO | Portland Symphony Orchestra |
| PSO | Princeton Symphony Orchestra |