"You get this feeling I can do whatever I want, you know, nothing is going to really hold me back, " said student Calla Chang.

CNN: Retracing the footsteps of young Obama

That is, you say, I want you to start here at a certain fine, you get a little quiet here, then lift up, or hold this note just a touch long or make it build it shorter or something like that.

NPR: Storied Glee Club Faces Waning Membership