Nightlife for folks under 21?

Hi! I'm 19 years old, home for the summer, and I'm just looking for some cool things for me and my friends to do on the weekends. I know that Memphis mostly caters to the 21+ crowd, but I was wondering if there were any hidden gems out there that are 18+, preferably with good dancing music. So far I know Senses has a college night, which I haven't been to yet (how is it?) and I've been to the Rumba Room a couple times which is pretty fun. It would also be cool to find some bars with live music to not drink at, but to just hang out with my older sister. Thanks!