I don’t know how far North you guys are willing to go but a few of the SUNYs (in NY) have awesome music programs - especially SUNY Fredonia and SUNY Potsdam, although that’s with the knowledge of someone who is especially into the vocal side of music. However, Fredonia is supposed to be good for music all around, while I’ve heard similar things about Potsdam (with their Crane School of Music). Music majors are hard and selective to get into no matter where you’re looking, but your son seems like he would be a perfect candidate. I wish him good luck!