If I were in charge of the entertainment department,
I would set up a hall like Preservation Hall in New Orleans in Brownwood. I would put it in the white building that looks like a church. The music could be any genre. In Preservation Hall there are about 5 rows of benches and standing up room behind them. They don't serve drinks but you can carry them in. A ticket gets you admission and you can stay as long as you want but it's not so comfortable that you would stay for all 3 sets.
This will give you a feeling for the place.
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