Joe Williams (1918-1999) was a celebrated vocalist known for his collaboration with the Count Basie Orchestra, as well as a successful solo career. The Joe Williams annotated scores collection is comprised of over thirty scores.

The New School Archives staff created the Mannes College of Music administrative records collection by integrating several collections documenting the Mannes College of Music (now, Mannes School of Music). The collection includes correspondence, event flyers, photographs, legal records, meeting minutes, illustrations, administrative records and reports.

Sylvia Marlowe (1908-1981) was an important mid-twentieth century American harpsichordist. The Sylvia Marlowe collection documents her performance career, predominantly through scores, many inscribed to her by composers. Additionally, photographs and textual publicity materials provide further context for Marlowe's performances and recordings.

Harpsichordist Sylvia Marlowe (1908-1981) contributed to popularizing harpsichord music and promoting new works for the harpsichord in the twentieth century. The collection includes personal correspondence, photographs, clippings and programs, contracts and wills, analog audio reels of important albums Marlowe recorded, and a set of scores of classical pieces set in contemporary popular arrangements composed for Marlowe. The collection also contains correspondence and documents relating to the Harpsichord Music Society (founded by Marlowe) and Kenneth Cooper, its director.

Music manuscripts and books collected by Victor Hammer, including a copy of Ein Beitrag zur Ornamentik by Heinrich Schenker, musical sketches and three books of lute tablature, correspondence of Carolyn Reading Hammer with Clifford Wurfel and Robert Lang of the University of California at Riverside Library, a drawing of Hans Weisse by Victor Hammer, and manuscripts of compositions by Hans Weisse, with dedications to Victor Hammer.