Gloria Coates is an American composer who studied at Columbia University with Jack Beeson and Otto Luening. These papers include correspondence, concert programs and business records related to her activities as director of the German-American Contemporary Music Series in Munich from 1970 through 1986.

Correspondence, manuscripts, documents, notes, printed material, and photographs of Leonard Altman concerning his work as editor of LISTEN and board member of Carnegie Hall as well as his other professional and personal interests.