On live album After Two But Before Five, Portland, Ore.’s Hillstomp plays the blues simple, dirty and sweaty. Singer/slide-guitarist Henry Kammerer and bucket-drummer John Johnson are passionate about stripped-down, electrified country blues.

This is nostalgia with a thumping modernity, like Muddy Waters and the North Mississippi Allstars jamming on a rural back porch. Hillstomp isn’t shy about references: Kammerer and Johnson cover R. L. Burnside’s “Goin’ Down South,” Mississippi Fred McDowell’s “Dark Clouds A-Risin’” and Bukka White.

The liberal blues interpretations are amply driven home by the duo’s boot-stompin’ originals such as devil-may-care “Mr. Charlie III” and hometown, crowd pleasing favorite “NE Portland 3 AM.”

Grade: A

After Two But Before Five is currently available.