Classical Music Library    
Classical Music Library is a fully searchable classical music resource—a comprehensive database of distinguished classical recordings. It includes tens of thousands of licensed recordings that users can listen to over the Internet. The audio selections are cross-referenced to a database of supplementary reference information. Users browse, search, click, and then listen to the music through their headphones.

African American Song    
From early slave spirituals to modern movements in jazz, blues, and gospel, African American music has influenced the development of music worldwide. African American Music Reference is the first reference database to chronicle the rich history of this music through 1970. It brings together for the first time the most important reference texts in this subject area—including discographies and bibliographies—together with songsheets, images, and other print resources. It also includes some 16,000 tracks of great historical recordings from Document Records. This  collection features recordings from the first half of the 20th century and includes iconic artists such as The Fisk Jubilee Singers, Memphis Minnie, Blind Willie McTell and Huddie Ledbetter.  It provides a rich source of Blues and early Jazz recordings as well as a lot of sacred music.

Smithsonian Global Sound    
Smithsonian Global Sound for Libraries is a virtual encyclopedia of the world's musical and aural traditions. The collection provides educators, students, and interested listeners with an unprecedented variety of online resources that support the creation, continuity, and preservation of diverse musical forms. The database includes an extraordinary array of more than 35,000 individual tracks of music, spoken word, and natural and human-made sounds.