The Roanoke, Virginia duo Eternal Summers made their name in underground pop circles with a ramshackle guitar-and-drum sound that celebrated a resurgence several years ago. Time has told it's a formula that generally only goes so far, so it makes sense that for their sophomore record Correct Behavior, the band has fleshed out its sound with the addition of a new bassist. Dreamier territory comes with those textural expansions, and on "Millions" Nicole Yun's honed melodies shine and snap with newfound clarity that at times recalls a hyperactive Sundays, or Amelia Fletcher in Heavenly or Tender Trap. This is a well-paced progression that doesn't feel overtly recycled or deliberately slick, and a proper maturation for an indie pop band coming further into its own.

[Correct Behavior is out July 24 via Kanine.]