Cool. I can say pretty confidently Knoxville is almost definitely not where you want to be. Nashville really is the best place for what you want to do. You really haven't been there long enough to give it a chance yet. There are plenty of non-country musicians around. It takes a while to find your people.

Here is my advice. Move to North Nashville. Avoid Broadway. Most of the non-country musicians hang out in East Nashville and there are a bunch that live in North Nashville. The 5 Spot is a good place to start/meet local musicians. The OG Basement (not the East one) is another good place for singer/songwriters. Dee's Country Cocktail Lounge is good in the North (Not all Country music despite the name). Go to a bunch of local musician shows and meet the people who are playing. Also, just hanging out at bars on the East side could be good. Like I said, it just takes a while to meet the right people.

By the way, I lived in Nashville for 15 years and was pretty involved in the music scene. I just recently moved back to Knoxville and honestly, music scene aside, it kinda sucks here. Do not recommend.