A country groove instrumental duo comprising guitarist Jeremy Fetzer and pedal steel guitarist Spencer Cullum, both veteran Nashville session musicians, Steelism combines country twang, jazzy swing, blues, and an R&B punch, with throwback surf guitar, and Ennio Morricone-like movie soundtrack washes in an utterly unique 21st century blend of all of these things and more. Fetzer, who grew up in Canton, Ohio, and Cullum, who grew up in Essex, England, met while touring the U.K. as part of Nashville singer Caitlin Rose's band. The two began experimenting with impromptu instrument...