Re:Sumac/Oxbow live- JUST DO IT would be my advice. I don't know about two nights in succession but definitely at least once.
Also: do you guys know Broker?
On Smalltown America. Their latest album was released last year but it's too good not to mention. Bestial, slightly jazzy, weird chords, all-over-the-place but focused post-hardcore. But HEAVY.
Here's a taster: