Degree

What instrument(s) do you play?

The Hartt School does not have an undergrad degree in music therapy. http://harttweb.hartford.edu/undergraduate/default.aspx
There are indeed many areas of study at this conservatory, you are right, but we don’t have enough information to respond helpfully.

Hartt School is a conservatory that is part of the University of Hartford, as you know. The University of Hartford does not offer a major in physiology.
http://www.hartford.edu/academics/AreasofStudy/UndergraduatePrograms-listingpage/default.aspx
They do have a physical therapy major: is that what you are looking for?

You can study music for a BM, a BA, a double major or a double degree. You can also study something else and continue with lessons and extracurricular performance or outreach/service. Here is a good essay on choosing a path for music studies:
http://www.peabody.jhu.edu/conservatory/admissions/tips/doubledegree.html

There are undergrad degrees in music therapy, but also grad programs. Have you volunteered in this area? If not I suggest you do, before focusing on it for your undergrad studies. Ditto with PT.