He’s been described as “the love child of Otis Redding and Doc Watson.” “The John Legend of rockabilly.” And recently, “a ‘what-took-you-so-long’ fusion of Elvis and Marvin Gaye.” But he...

JATK (pronounced “Jack”), the power-pop project from Boston-based songwriter Matt Jatkola and his circle of collaborators, cranks up an arsenal of hooks and riffs with affecting jolts of guitar-rock reflected...