Track 1:  "Tap your toe."
Track 2: " Take a deep breath."
Track 3: "Don't breath through your nose."
Track 4:   "Play the right note." 
Track 5: "Sit up strait..."
Track 31:  "Stay wiht the metronome"
Track 57:  "Fix your embouchure."
Track 82:  "Too much mouthpiece in your mouth."
Track 95: "TAP YOUR TOE"
Track 456:  "SIT UP STRAIT!"
Can I squeeze a "use your brain!" in there?  How about "read music!"  I don't think either of those would be very effective, would they?  I love my students...no, really, I do.  I just get so frustrated by their inability do what I want them to do!  I can hear some of my professors chuckling in the back of my head right now (clue #63 that I'm loosing my mind in this first year of teaching).  
On another note....check this story out.  One of the many reasons I love band.