If you have a specific title in mind, Barton classic will show you whether the MIT Libraries own it.  Use Barton to search for books, scores, sound recordings, or video.

Oxford Bibliographies Online: Music
https://libguides.mit.edu/obo-mus
​Annotated bibliographies and research guides by music scholars.  The "Find it in your library" links will help identify options for getting to the full text of cited sources.

Google BookSearch
http://books.google.com/
Searches the full text of books scanned from publisher and library partners. Full text is mostly only available for older books (pre-1922), but table of contents are usually available for all books.

HathiTrust Digital Library
https://www.hathitrust.org
HathiTrust is a partnership of academic and research institutions, offering a collection of millions of titles digitized from libraries around the world.  Remember to log in for the most complete access.

If I'm not available to answer your question, please feel free to consult with one of my colleagues:

Ask Us
Ask a question, make an appointment, give feedback, or visit us.