One of the contemporary acoustic music scene’s most skilled and enduring performers returns with a diverse 14-song set that manages to both ring soothingly familiar and expand the artist’s parameters in rewarding new directions. Longtime listeners steeped in Lewis’s formidable catalog of bluegrass (both traditional and “newgrass”) and poignant folk balladry will slip into gems such as “The Roughest Road” and the gospel-kissed a cappella opening track “How Can I Keep From Singing?” like a treasured old pair of scuffed and supple leather boots. Less predictable but no less compelling are tracks like “Cool Your Jets,” a finger-poppin’, jazzy groover that features a cameo recitation by none other than National Public Radio’s beloved “Click and Clack,” Ray and Tom Magliozzi. Also from a bit outside the box come “Burley Coulter’s Song for Kate Helen Branch,” a chamber-folk jewel performed on two violins and cello, and the set-closing “Sirens,” a sophisticated, cross-genre ballad with guest vocals from Noe Venable. As always, Lewis, who anchors the proceedings on acoustic rhythm guitar and fiddles up a storm throughout, surrounds herself with a sterling supporting cast that includes guitarists David Grier and Nina Gerber, fiddler Darol Anger, mandolinist Tom Rozum, and singers Kathy Kallick and Tim O’Brien. (Spruce and Maple Music, spruceandmaplemusic.com)