I remember seeing the Allman Brothers Band at Cooley's. Remember The Great Southeast Music Hall and beer by the bucket ?
Nope, that was all about 4 or 5 years ahead of me.
I do remember two places in Underground.
One was on the lower level and was going for a turn of the century New Orleans kind of thing. The door man waved us in, two 16 year old boys and a couple of girls that were with us but I'd never met before that I suspect might have been a year or more younger. Flaming Hurricanes 'til somebody falls over. Then kinda vague flashes.
The other was on the upper level, I want to call it The Mad Hatter, but I'm not sure. Nickel beer.......then...........ugliness.