Eureka California is a barebones duo with a big sound, a testament to just how much you can get out of a few basic elements. Jake Ward and Marie Uhler play two-minute rock and roll songs. They write verses that are catchier than most bands’ choruses. This is rock music made timeless, the kind of thing you find on a cassette stuck under your car seat and keep in the deck for hours. It’s what Ward is talking about when he sings, “This ain’t no A-side/ But it sure ain’t no B-side”—that eternal place in between.