<p>I am visiting U-M at the end of the month, and I wanted to email the music department to request to ‘sit-in’ on a class. Who am I supposed to contact for that?</p>
<p>Contact the head of whichever class you want to sit in on (the teacher of the class). Usually you can find the contact information on the site. I can’t speak for normal teachers, but all the directors I emailed were really great and enthusiastic about letting people sit in on rehearsals and classes.</p>