| Abbreviation | Definition |
|---|---|
| RPSM | Regent Park School of Music |
| RQB | Rock Qualification Band |
| RRB | Randy Rogers Band |
| RRC | Ruff Ryder Crew |
| RRF | Rolling River Fest |
| RRMF | Rockin River Music Festival |
| RRQ | Russell Reed Quartet |
| RRW | Rockabilly Rebel Weekend |
| RRX | RetroRocket X Electric Guitar |
| RS | Rim Shot |
| RS | Roland Strings |
| RS | Rolling Stone |
| RSC | Reflective Sound Cancellation |
| RSC | Richmondshire Subscription Concerts |
| RSCB | Re sa Ce Bu |
| RSCM | Royal School of Church Music |
| RSDB | Real Simultaneous Dual Band |
| RSFP | Reggae Strong for Peace |
| RSM | Royal School of Music |
| RSMC | Rappahannock Summer Music Camp |