Berklee is great but if you don’t want to exceed $45K a year, maybe this isn’t your school. Music schools with a great reputation are going to require an audition on an instrument. You say you play a variety of instruments but you will need to be very proficient on one. Also theory knowledge will be a help in your auditions. Check out Belmont in Nashville. They are a little less expensive than the Berklee type schools. Also check out UNT.