- American Symphony Orchestra (New York, N.Y.)1
- Ames, William T1
- Ammann, Benno, 1904-19861
- An, Ik-t'ae, 1906-19653
- Anatol’ev, An.5
- Anderer, Joseph1
- Anderson, Adolph2
- Anderson, Beth, 1950-1
- Anderson, Donald (Cellist)1
- Anderson, G. Early1
- Anderson, James1
- Anderson, Jim1
- Anderson, Jon, 1944-1
- Anderson, Lisa1
- Anderson, Marian, 1897-19933
- Anderson, Ronald, 1934-5
- Anderson, Ruth, 1928-20191
- Anderson, Ruth, 1953-1
- Angerer, Paul, 1927-20171
- Anhalt, István2
- Anshe Chesed Congregation (Cleveland, Ohio)1
- Antheil, George, 1900-19592
- Antonini, Alfredo2
- Antoniou, Theodore, 1935-20181
- Apaydın, Pertev, 1929-20211
- Aponte, Joey4
- Appleton, Jon H., 1939-20222
- Aragon, 1897-19821
- Ardévol, José, 1911-19811
- Arel, B ulent, 1919-19902
- Arel, Bülent, 1919-19903
- Arel, Bülent, 1919-199028
- Argerich, Martha, 1941-1
- Ariadne String Quartet1
- Arnell, Richard, 1917-20091
- Arnold, Juliette1
- Arthuys, Philippe2
- Ascher, Kenny2
- Asha (Musician)1
- Ashbery, John, 1927-20171
- Asher, Christina3
- Asin, Nadine1
- Assail, Peter1
- Asuar, José Vicente, 1933-1
- Atkins, John (Pianist)1
- Auber, D. F. E. (Daniel François Esprit), 1782-18713
- Auburn Theological Seminary (New York, N.Y.)3
- Auchter, Norma Holmes, 1922-1
- Audio Engineering Society1
- Austin, Larry1
- Austin, Warren Robinson, 1877-19621
- Auzin, Norma1
- Avallon1
- Avins, Styra1
- Avni, Tzvi, 1927-1
- Avshalomov, Jacob, 1919-20133
- Aykal, Gürer, 1942-2
- Azmon, Shmuel1
- B-iĭ, L., 1896-19531
- BBC Radio 32