Simplify the following text for a Grade 5 native English-speaking person.
Original: Widely acknowledged as one of the world 's most innovative and technically proficient banjo players , he is best known for his work with the bands New Grass Revival and BÃ la Fleck and the Flecktones .
Simplified: He is best known for his work with the band BÃ la Fleck and the Flecktones .