Tape recordings of the Happy Jazz Band and the Jim Cullum Jazz Band covering over 30 years of the band's performances. The collection also contains performances by other noteworthy performers including Jack Teagarden and Bobby Hackett.
The James Schwabacher Collection consists of sound recordings, correspondence, scores, scrapbooks, clippings, programs, teaching material and other papers from San Francisco philanthropist and lyric tenor James Schwabacher.
The Judith Rosen Collection consists of unpublished recordings of performances, lectures, and radio programs concerning classical music, focusing on twentieth century composition, as well as women musicians and composers.
Papers and recordings from American conductor and composer Gerhard Samuel (1924-2008), particularly from his years conducting the Oakland Symphony, Minneapolis Symphony, and University of Cincinnati Philharmonia Orchestra.
Over his lifetime, Denis Condon (1933-2012) amassed a collection of over 7500 piano rolls and ten instruments. The collection contains rolls of important composers of the period, all playing their own works.