Music Dictionary Online's primary purpose is, in the case of non-English words and phrases, to offer translations and, more generally, and where appropriate, to offer explanations and comments about general (non-musical) words as well as specialist (i.e. musical, etc.) terms that might be found in musical scores, libretti, books on music, web sites, CD notes, concert programmes, etc.
This sheet music collection from the Temple University Libraries brings together 850 pieces of music for consideration by the general public. Visitors can search the collection as they see fit. They will find that most of the music here is from the Gilded Age and earlier.
The Library of Congress presents the National Jukebox, which makes historical sound recordings available to the public free of charge. The Jukebox includes recordings from the extraordinary collections of the Library of Congress Packard Campus for Audio Visual Conservation and other contributing libraries and archives.