Obviously a reach, but you should look at Yale. Your son sounds a lot like my son who is on PhD biochem track there and very involved in music. When we researched schools Yale was the best option we found for that intellectual vibe and really strong music for non music majors. We toured Swat and my son was not impressed with the music opportunities. Their orchestra is from all three consortium schools and they told him they can have trouble filling all the seats. At Yale there is a very selective orchestra but if you don’t get in there are several other very high quality groups. They seem to value kids with strengths in music and we know several kids who chose it over Julliard. If your son is used to honors bands and all-state level just make sure he is happy with the level of play wherever he decides to go. Some college orchestras take everyone which is nice but may not be what he is looking for. Good luck!