The Kuf Knotz Band, from left, Kuf Knotz, Melvin “Blaqmel” McKnight and Adam Ahuja perform at the 54th annual Philadelphia Folk Festival.

The Kuf Knotz Band, from left, Kuf Knotz, Melvin "Blaqmel" McKnight and Adam Ahuja perform at the 54th annual Philadelphia Folk Festival.

The Kuf Knotz Band, from left, Kuf Knotz, Melvin “Blaqmel” McKnight and Adam Ahuja perform at the 54th annual Philadelphia Folk Festival.