- Adam, Helen1
- Allen, Marshall1
- Alpha Software Corporation1
- Altruda, Joey2
- Andersen, Eric2
- Andrews, Bruce5
- Andrews, Jim1
- Asko ensemble1
- Attila the Stockbroker1
- Atwood, Margaret2
- Auden, W.H.1
- Austin, Alan1
- Avison, Margaret7
- Ayler, Albert1
- Ayler, Don1
- Baker, Tony1
- Bakken, Dick1
- Ball, Hugo1
- Bannerman, Maja1
- Bartók, Béla1