Described as a “one-man jam band” for his use of phrase looping while playing multiple instruments, American singer-songwriter Keller Williams stops by the Holy City on a joint tour with Leftover Salmon, a band that has pushed bluegrass boundaries by blending in rock, Cajun, and psychedelia. The Windjammer, 1008 Ocean Blvd., Isle of Palms. Saturday, 8pm. $50-$45. (843)886-8596, www.the-windjammer.com
