The primary emphasis of the Recorded Sound Collection is on New Orleans jazz as played by New Orleans musicians, but there is also a representative sampling of related musical styles including blues, rhythm and blues, gospel, rock and roll, and Cajun, as well as African and West Indian forms. The discs include notable donations from the collections of Al Rose, Edmond Souchon, Roger C. Gulbrandsen, Richard B. Allen, Tad Jones, and Robert Palmer. The tapes include many recordings of jam sessions and other unreleased materials, including complete coverage of the Tulane Hot Jazz Classic performances of 1982 and 1983.