- Abby Lorain
- ABC Orchestra
- abdulaziz alharbi
- Abe Manuel, Jr.
- Abe Zacharias
- Abel Josephson
- Above the Town
- Abrew's Portuguese Instrumental Trio
- Abstract With G. Lawrence Francis
- A.C. Brooks
- Acadiana
- Acadiana
- Ace Berry
- Ace Cannon
- Ace Diamond
- Ace in the Hole
- "Ace" O'Donnell
- Acorn Sisters
- Acoustic Blue
- Acoustic Endeavors
- Act Four
- ACT OF CONGRESS
- Adam Aijala
- Adam Ashley
- Adam Brand
- Adam Carroll
- Adam Clark
- Adam Craig
- Adam Granger
- Adam Gregory
- Adam Guettel
- Adam Hurt