So UM and BU should be out if you want $60K. Don’t even bother. I suppose there’s a small chance at BU with merit but highly unlikely. UM for next year is more than $80K the first two years and $84K the last two - and you’re not going to get merit.
He wants small to Medium and you give me Michigan?? 
Under $60K, you have Indiana, which is outstanding in music. Ohio State is another as well as UMN and Michigan State - all within budget.
If you apply to places over your budget, you’re just setting up for a - sorry son, I know you got in but you can’t go there or you cave and pay.
So instead of BU, look to other urban schools - Pitt, VCU - well known in arts, and maybe if it’s not too far south - College of Charleston, which will be smaller. These three are all urban and within your budget.
Other thoughts:
- U Cincy - but it’s a conservatory
- You went to Rochester - Case Western is one to look at - but like UR, may not hit $60K.
- U Hartford - Hartt school
- Hofstra
- MIllersville U (public in PA with a music school)
- Muhlenberg
- Christopher Newport - public LAC in Virginia
- Oberlin
- SUNYs like Purchase, Fredonia, and others (smaller)
- I noted St. Olaf and Lawrence before. Kalamazoo will be another to easily clear budget.
So - a few things:
- A degree in music - certainly you can go to law school - but what if he doesn’t? Maybe you should have a double major or do a music minor…because life will be tough with a music major (I think) if you’re doing something non-musical.
- Some schools will be audition required and I can’t project that.
I’m putting this thread - which you commented on. Not sure if it will be helpful:
School list for violin performance - College Majors / Music Majors - College Confidential Forums
Good luck