Just adding to the wealth of good advice posted here so far. The more integrated the schools, the easier it will be to attempt a dual degree, and the easier it will also be to change your mind along the way. We found Oberlin, Northwestern and University of Michigan very dual-degree friendly since even the non-dual degree music majors are taking academic classes in the liberal arts or sciences departments at the schools. All of these have a significant percentage of students who do the dual programs (around 20% or so I believe) This is NOT the case with Columbia-Julliard/ Tufts-NEC and even with some of the schools at are more closely associated (Rice-Shepard, Eastman Rochester) where only a very very small percentage of students do double degrees. (for DD's instrument, she was told that the Shepherd teacher would permit her to do a double degree, and that only a few Shepherd faculty allowed this.) Peabody-Hopkins also only has a small percentage of dual degree students, and the logistics are not great. You should also investigate Bard.