Contains photographs and slides of various productions, including Masked Ball, La Triviata, HMS Pinafore, Sweethearts, Merry Widow, Mikado, Rigoletto, Lakme, Martha, The Marriage of Figaro, Golden Goose, Marriage by Lantern, Carmen, and other opera performances and tours, 1952-1976.

Collection contains professional correspondence for when Don L. Earl was a professor at Brigham Young University, newspaper clippings of operas and other events in which he was involved, class and student files, photographs and slides including those of operas performed at BYU, music scores, production programs, and other materials relating to Earl's time as faculty at BYU and during his musical career, 1952-1978.

This series contains large format slides in color and black and white of original photographs and reproductions of illustrations taken from various texts related to music.

Collection contains photographs, correpsondence, postcards, programs for BYU Music Department productions, newsletters for RCMI, newspapers clippings on the Music Department and Symphonic Band, study abroad fliers, and photographic slides, 1966-1976.