Tracy Nelson & Dianne Davidson

Here’s a bill featuring two Nashville singers who have ranged across blues, soul and country music during their long careers. From Madison, Wis., Tracy Nelson began working with Chicago blues performers like Charlie Musselwhite in the mid-1960s, and then moved to San Francisco, where she led the great soul-blues band Mother Earth. Nelson’s best-known song, 1968’s “Down So Low,” recasts soul by taking a flexible approach to rhythm and phrasing. After relocating to the Nashville area in the late ’60s, Nelson & Co. recorded Make a Joyful Noise and Mother Earth Presents Tracy Nelson Country, exquisite fusions of New Orleans soul, Chicago blues and Tennessee country. Nelson’s solo career is notable for her 1974 hit version of L.E. White’s country song “After the Fire Is Gone,” which she cut with Willie Nelson, and albums like 2011’s Victim of the Blues. Sharing the bill with Nelson at Douglas Corner is Memphis-born vocalist Dianne Davidson, whose Nashville-recorded ’70s albums Mountain Mama and Baby are blues-country-soul classics. 6 p.m. at Douglas Corner, 2016 Eighth Ave. S. EDD HURT