Early MTV staples The Fixx, a British New Wave group that had a string of hits in the ’80s including “One Thing Leads to Another,” is letting fans choose its set list each night by nominating songs via its official site, Facebook, and Twitter. The songs with the most mentions will be played that evening. Through Tuesday. The Triple Door, 216 Union St., 838-4333, thetripledoor.net. 9 p.m. (8 p.m. Tues.) $30 adv./$50 front row. DL