Sturgill Simpson returns with the next volume of his Cuttin’ Grass series, following The Butcher Shoppe Sessions. Vol. 2: The Cowboy Arms Sessions includes Call to Arms, Oh Sarah, and Keep It Between the Lines. Vol. 2 features a returning crew of celebrated bluegrass players who were also involved in Vol. 1, including mandolin player Sierra Hull, guitarist Tim O’Brien, and fiddler Stuart Duncan.