The Special Consensus plays June 28 & 29 at the Black Hills Bluegrass Festival at Elkview Campground in Sturgis. They'll also play June 27 at 5:30 pm at Main Street Square in Rapid City. The Special Consensus received a 2012 Grammy nomination for Best Bluegrass Album for "Scratch Gravel Road." Greg Cahill plays banjo and sings baritone and tenor harmony vocals. Chicago born and bred, he has been playing bluegrass banjo since the early 1970s. Cahill co-founded The Special Consensus in Chicago in 1975 and has continued to tour nationally and internationally with the band since the late 1970s. He has released four banjo instructional DVDs and teaches banjo at festival workshops and at music camps nationally and internationally.