University of Science and Arts of Oklahoma
Naxos Music Online is a subscription streaming service to which Nash Library subscribes. It includes many musical theatre cast albums and compelations. To browse through them, hover over the "Genres" button at the top of the page. Then, in the menu that appears, hover over "Classical Music" and select "Musicals" from the submenu that appears. Note that there are other options too you may find useful in the submenu, including "Film and TV Music" and "Operetta."
You can also search by individual song title, or by album and also browse by composer, artist, genre, and label.
If you are on the USAO campus, you are automatically logged in. If you are off-campus, you will have to log in with your USAO credentials.