Much like the moment in The Wizard of Oz when the film turns from black-and-white to Technicolor, the opening strains of Eurythmics’ “Sweet Dreams (Are Made of This)” irrevocably changed perceptions of 1980s pop-rock. Employing the mechanistic funk of Krautrock, the grit of gospel, and the strangeness of psychedelia, Eurythmics’ genre- and gender-fluid pop vision was both futuristic and beholden to past eras, while remaining eminently accessible.