The collection contains 34,000 pieces of sheet music, 14,000 recordings, 3,300 books, 200 publicity photographs, news clippings and correspondence.

This is an artificial collection that is comprised of all donations of CDs and DVDs.
Sound recordings include: original cast recordings of Broadway musicals and Hollywood movie musicals, including foreign language albums; albums recorded by Songbook-era performers; and albums including Songbook-era pieces sung by later performers.
Video recordings include: recorded Broadway musical performances; Hollywood movie musicals; documentaries; and movies with Songbook-era music in the soundtrack.