Although mine's a music major (at Smith), she is a composer, not a performance major (there are no performance majors at Smith.) She was looking for music within a liberal arts context.
I have no doubt, really none, that, given the quality of the faculty, the new Bard Conservatory is very quickly going to be the top of the heap, bar none, in that category (again, for joint BA/BM - there will still be the conservatories:
http://www.bard.edu/conservatory/overview/