| Abbreviation | Definition |
|---|---|
| B&O | Bullets and Octane |
| B182 | Blink One Eighty Two |
| B1A4 | Be the One, All for One |
| B2ST | Beast |
| BA | BArenreiter |
| BAAM | Bude Arts and Music |
| BABS | British Association of Barbershop Singers |
| BACCH | Band Assembled Crosstalk Cancellation Hierarchy |
| BACM | British Archive of Country Music |
| BAD | Brownfield Abandoned Dilapidated |
| BAD | Buster Adam Donny |
| BAJE | Blues And Jazz Experience |
| BAJP | Blues And Jazz Promotions |
| BALM | Born Again Lesbian Music |
| BAM | Brooklyn Academy Of Music |
| BAMB | By All Means Band |
| BAMC | Bay Area Music Circle |
| BAMC | Bay Area Music Collective |
| BAMC | Bay Area Music Connection Bay Area Music Connection |
| BAMF | Beer Art Music Food |