<p>Berklee College of Music is SAT-optional and has many if not all of those majors. Admission would be based mostly on an audition, but financial aid may not be the greatest.</p>
<p>As flutegirl says, many conservatories like The Conservatory of Music of Puerto Rico, Curtis, Eastman School of Music, Juilliard, the Longy School of Music, The Manhattan School of Music, New England Conservatory, The New School (Mannes), and the San Francisco Conservatory do not require SATs and many will not care too much about grades provided he speaks English well enough to get by in his lessons. A potential problem there is that he will be auditioning against some seriously talented students and most of these program are much more oriented toward classical guitar and do not have a lot of the music tech stuff that seem to interest him.</p>
<p>You might have a look at Susquehanna University. They have a pretty good music program, are SAT-optional, have been known to accept students with a C+ sort of average (if he can improve a bit) and they have a very good guitar teacher who is into jazz/popular styles as well as classical. They also have a student-run radio station where he could pick up some of the tech stuff.</p>
<p>There are also for-profit schools like Full Sail, that have music tech programs and will basically take any high school grad who can come up with the tuition to pay for the program.</p>