Why is MM nonexistent in Nashville vs LA?
Any one else ehad this experience?

I've never been to Nashville.
Statisitcs show a much lower population than LA.
Los Angeles is still a major center for production of television and movies. Pretty people go there to try and make it in that industry.

The two are not comparable. If you are looking for gigs, don't come to Bellingham WA, it's pretty quiet here.
Los Angeles, New York, Chicago and Miami should all be pretty busy.

I've recently returned to Nashville from Atlanta and the city has exploded over the past twenty years. Compared to LA, it's still a small town but that doesn't mean there isn't any work. A strong book will always get work but you've got to let people know that you're here.