Complex sentence: Bassnectar honed his style playing house parties in the San Francisco Bay Area, known at the time as DJ Lorin and began gaining momentum at Burning Man, often playing up to 7 sets a night.
Split into simpler sentences: Bassnectar honed his sound playing house parties in the San Francisco Bay Area known at the time as DJ Lorin. He began gaining momentum at Burning Man, often playing up to 7 sets a night.