Complex sentence: Botwin started out as a bassist for the dance music Pnuma Trio in 2004 before becoming an owner of a record label, design company and store owner under the name Elm & Oak in downtown Boulder, Colorado.
Split into simpler sentences: Botwin started out as a bassist for the dance music Pnuma Trio in 2004. He then created a record label, design company and store owner under the name Elm & Oak in downtown Boulder, Colorado.