Good places to start would be Belmont U (religious) and Middle Tennessee State = has a major, not sure a minor.
So you are in a good place - look into MTSU too!! It will be cheaper, likely as good, and not religious. Plus it’s far more diverse than Belmont. It might be the best school from what I’m listing below.
UGA would be a reach. They have a certificate in the b school - you’d have to see if you can get it without getting a major. Athens isn’t a major city but it is a major college town.
U of SC has a minor in Music Entrepreneurship - if you get a 1380, it’s a target. It’s in downtown Columbia.
Florida Atlantic is a likely - and has a minor in Commercial Music. It’s not a college area but it’s in a very dense area.
Kennesaw State is a safety - and has a minor in music and entertainment. Not a college area but suburban Atlanta.
Louisville is a safety and has a minor in Music Entrepreneurship - 2.5 hours North of Nashville, hopefully not too cold. South of the city and Louisville is a GREAT city.
This is a start for you - I tried to go with in/near city (Murfreesboro does have stuff happening), warmer weather, non homogenous, and budget.
Schools like Drexel and Syracuse would be great - but colder and too expensive. Auburn would be too homogenous and rural. UTK might be too homogenous - depends on how you define it - but it would fit. It’s a target. Belmont is a bit homogenous as well - not to mention religious - so I don’t see that fitting. Indiana, if not too cold, will work. It’s a vibrant college town - it will be upper 50s though - with a possibility of small merit.
Hope that’s a helpful start.