The Yonder Mountain String Band won’t perform again until Labor Day weekend at moe.down and will focus on festival gigs through late September. However, its members will surface for a couple intriguing side projects prior to the opening of the band’s fall tour at Mobile, Alabama’s Soul Kitchen on September 30. This coming Sunday, YMSB’s Jeff Austin will be joined by Darol Anger, Billy Nershi and Eric Thorin for a Jeff and Friends performance in Alta, WY at the Grand Targhee Bluegrass Festival. Then on September 20, the band’s Ben Kaufmann and Adam Aijala will deliver an acoustic duo performance at the Wildflower Pavilion in Lyons, CO.