Since he wants to double major, Hamilton, Amherst and Vassar are all good choices since they have few distribution requirements. We have heard the jazz groups at all three and they were excellent. Amherst was very friendly, Hamilton played a more progressive type of jazz and Vassar was a mix of everything! Both S1 and S2 had great experiences at Vassar in the jazz combos and in the big band. Another suggestion is Bucknell. A few years ago, we visited Bucknell and listened in on their jazz band rehearsal and were ‘blown away’ literally by their energy. So you might want to also check them out also. We also heard the Harvard group and they were just amazing. Lots of choices, be sure to check out the music department websites and visit during a rehearsal/concert if you can.