Simplify the following text for a Grade 7 native English-speaking person.
Original: Founding members were singer-songwriter and guitarist Dave Matthews , bassist Stefan Lessard , drummer\/backing vocalist Carter Beauford and saxophonist LeRoi Moore . Boyd Tinsley was added to the band as a violinist soon after the band was formed .
Simplified: The other band members are LeRoi Moore , Stefan Lessard , Boyd Tinsley , and Carter Beauford .