By Jon Pareles

Marie Knight

Back in the 1940s Marie Knight sang with the electric-guitar-slinging gospel pioneer Sister Rosetta Tharpe, and she still performs Tharpe's songs. But her first album in decades, "Let Us Get Together" (M.C.), gets more rural. It's a tribute to the ragtimey gospel of the Rev. Gary Davis. The guitarist Larry Campbell, who has played with Bob Dylan and Phil Lesh, backs her with acoustic-guitar picking or leads a jaunty band, usually unplugged, à la Ry Cooder. (The exception is a haunted "Death Don't Have No Mercy," with a tolling electric guitar.) Ms. Knight's voice is still hearty and unpredictable, and the settings let her proclaim her faith fervently but without shouting.