CCM Magazine Online : Music Magazine of Contemporary Christian Music. We also have a subscription in the Library
Diction Domain: The domain includes books, websites, recordings, software, fonts, and other materials and tools that are of use to singers leaning to perform in various languages.
Forvo: Pronunciation guide
Gilbert and Sullivan Archive : Opera and other works of W.S. Gilbert and Arthur Sullivan
Historic American Sheet Music : American 19th and early 20th century hosted by Duke University
Hymnary: Comprehensive index of 5,174 Hymnals and 1,111,028 published hymns
MENC: National Association for Music Education. The Worlds largest arts education organization
Music Cards: Customizable online music theory flash cards
Music Theory: teoría Tutorials , exercises and articles to develop an understanding of music theory
Music Theory: Self paced theory tutor
Online Resources for Music Scholars: Created and maintained by Harvard University
Oremus: 1,800 hymns in Anglican tradition. With Suggestions for the Sunday Lectionary
Scorser: Search engine for Musicians
Global Music Archive : multi-media reference archive and resource center for traditional and popular song, music, and dance of Africa and the Americas. It promotes education in African and American traditional and popular music.
Smithsonian Folkways: Find liner notes and audio samples from all musical and spoken word recordings issued by Folkways and its affiliates since Folkways' beginning in 1948.
World and traditional music - Archival sound recordings from the British Library : Contains thousands of sound recordings from a variety of cultures