Last Wednesday, at the end of a dock that juts from Quincy’s Squantum Point Park, Mark Johnson and Adam Kohl waited for 6 a.m. and tried to stay warm. It was almost time to launch into their first concert of the day as Bang! Bros., kicking off the duo’s attempt to break the world record for most live performances in different cities within 24 hours.
At 5:58 a.m., the pair decided it was time to power up their instruments: an array of mixers, drum machines, and other electronic devices strapped to a card table with yellow tape. They switched on the camping battery they brought along, and it lit up. The rest of the equipment did not. Nothing was turning on.