The Annual 4'33"

Kind of the opposite of math rock, despite the numbers in the title...

Every year I teach this Music & Philosophy class, and I perform John Cage's 4'33".  (This year I played it on a cheap kid's keyboard.)  Then we talk about it.  Today's discussion was particularly lively. 
Here's an mp3 of the performance.

We also listened to some Christopher DeLaurenti stuff, including one of his intermission pieces, which is great.

Sometimes teaching is fun.