Here is a screen cast I put together to show you just how easy it is for music educators to start using Google Reader. It literally just takes a few minutes to be up and running with rich content. The key (as you will see) is getting two bookmarklets into your bookmarks bar.
Now just continue to hit the "Subscribe" button when you discover new sites. Next steps include creating your sharing settings, organizing your feeds with tags and folders, and connecting with other Google Reader educators. Find me here: http://www.google.com/reader/shared/scnmusic