The Ernest Kanitz papers contain professional and personal correspondence, orchestrations, concert reviews, musical publications, and other material regarding Ernest Kanitz, an Austrian composer and musician. Materials also document his performances and programs of his concerts. Topics covered by the collection include commentaries on music compositions, documentation of his work history, and business materials associated with his work as a professor.

The collection consists of multiple musical works composed by Catalan composer and conductor Celestí Sadurní in the late 19th and early 20th century. The works, which were mostly unpublished, are handwritten either by Sadurní or a copyist and most are autographed and dated. Compositions in the collection include zarzuela operas, a ballet, a piano score, a religious march, and a number of short instrumental works.