College Dr Theodore Levin has accepted an appointment as assistant professor of ethnomusicology at Dartmouth College. Where I started was with the College Music Society's directory of college music teachers, which is a listing geographically by school. But that is just the playing field. Unless you have lots of time on your hands, you won't be able to learn enough about all of those programs to make ideally informed choices. You gave information on your general background, which sounds fine to me, but not on your particular interests or theoretical inclinations.
Different schools have strengths in different parts of the world.
Schools vary widely in their strengths and requirements along this axis as well. Ideally we need to be experts on both, but again schools have their strengths and weaknesses, and a careful look at how a given faculty covers these bases is necessary. Talk about these sorts of issues with ethnomusicology teachers and students and you will be able to narrow the field significantly. That's a big maybe, and where a solid application and recommendations probably make a big difference, although I would like to hear what some of you teachers out there have to say about that. Most schools have some scholarship money.