The Yonder Mountain String Band will take a dramatic step away from bluegrass tradition with the addition of a drummer when the group performs at the Tabernacle in Atlanta on February 18. Not only that but given the bands predilections, it will even push things farther with addition of an electric percussionist, Mr. RoyEl Wooten. Indeed, the Flecktones’ Futureman, creator of Synthaxe Drumitar will likely show off that instrument along with his latest creation, ‘The RoyEl’ (which is shaped like a piano) at the show.