- Ariadne String Quartet1
- Arnold, Juliette1
- Ascher, Kenny2
- Ashbery, John, 1927-20171
- Asher, Christina3
- Asin, Nadine1
- Assail, Peter1
- Atkins, John (Pianist)1
- Auber, D. F. E. (Daniel François Esprit), 1782-18713
- Auchter, Norma Holmes, 1922-1
- Austin, Larry1
- Austin, Warren Robinson, 1877-19621
- Auzin, Norma1
- Avins, Styra1
- Avni, Tzvi, 1927-1
- Avshalomov, Jacob, 1919-20133
- Aykal, Gürer, 1942-2
- BBC Radio Merseyside1
- Babbitt, Milton, 1916-20116
- Bach, Johann Christian, 1735-17821
- Bach, Johann Sebastian, 1685-175017
- Bachmann, Ingeborg, 1926-19731
- Bacon, Ernst, 1898-19901
- Bader, Yvette23
- Badings, Henk, 1907-19871
- Baez, Joan1
- Bagger, Louis3
- Baker, Israel1
- Baker, John, 1911-1
- Baksa, Robert F1
- Balaban, Emanuel, 1895-19731
- Balada, Leonardo, 1933-1
- Baldauf, Laurence C., Jr.1
- Baldini, Edmond3
- Bales, Richard, 1915-19981
- Ballou, Esther Williamson, 1915-19731
- Balseiro, José Agustín, 1900-19911
- Banat, Gabriel1
- Band (Musical group)4
- Bank, Danny1
- Banke, Lois1
- Barab, Seymour7
- Barak, Ann1
- Baraka, Amiri, 1934-201414
- Barber, Julian1
- Barber, Samuel, 1910-19816
- Barlow, Samuel L. M. (Samuel Latham Mitchill), 1892-19824
- Barlow, Wayne, 1912-19961
- Barnard-Columbia Chorus1
- Baron, Samuel, 1925-199715
- Barone, Marcantonio, 1962-1
- Barra, Donald1
- Barrio Choral Group1
- Barrows, John, 1913-19741
- Bartlet, John, active 1606-16101
- Bartlett, Wesley1
- Bartók, Béla, 1881-19451
- Bartók, Béla, 1881-194511
- Barzun, Jacques, 1907-20121
- Bashor, Phillip1