Listening to Music: free online course from Yale University

I've been thinking of trying to find an online course which offers a basic intorduction to how to actively listen to music, and this one is free and very accessible. The professor also has a very accessible conversational style and includes pop and Broadway musicals along with the classical music.
Listening to Music (free online Yale course)
http://oyc.yale.edu/music/listening-to-music/content/class-sessions