Name
- ALMO, Belgian stage rental firm and copyright agency, fl 1945-19612
- Accademia Nazionale di Santa Cecilia, 1585-1
- Adams, David, music publisher, fl 1955-19907
- Adler, Peter Herman, conductor, 1899-1990, http://isni.org/isni/000000...1
- Adolf Robitschek, music publishers, 1870-1
- Agar, Herbert Sebastian, American journalist, 1897-19801
- Albersen Muziek, Dutch music publishers, 1928-1
- Almeida, Antonio Jacques, conductor, 1928-19971
- Alphenaar Muziekhandel, of Haarlem; music dealers, 1894-1
- Alwyn, William, composer, 1905-19852
- American Composers' Alliance, 1937-1
- American Society of Composers, Authors and Publishers, 1914-2
- An, Ik-t'ae, South Korean composer and conductor, 1906-1965, http://isni.org/isni/000000...1
- Andrewes, John H., Head of Promotion, Boosey and Hawkes Ltd., fl 1954-19611
- Anglo-Soviet Music Press, music publishers, 1948-1970?5
- Apollo-Verlag, music publishers of Zürich, fl 1947-19591
- Artia, Czech publishing house, fl 1958-19671
- Artisjus, Hungarian Intellectual Property Office, 1953-1
- Arvid Englind, of Stockholm; music dealers, fl 1958-19591
- Asow, Erich Hermann, German musicologist, 1892-1964, http://isni.org/isni/000000...1