Fountain Square’s popular, free concert series kicks off this week — a true sign that summer is upon us. The first event in the MidPoint Indie Summer series (held Fridays through early September) is indicative of the strong roster of shows on the Square this year, showcasing a mix of quality touring headliners and some of local music’s finest. Headlining Indie Summer’s opening night is Surfer Blood, the superb, Florida-spawned Indie Pop Rock group that began drawing major attention with its 2010 debut album, Astro Coast. The band has since split with Warner Bros. Records and returned to its DIY roots with the just-released, hyper-melodic 1000 Palms, Surfer Blood’s finest work yet and, fittingly, a perfect melancholic summer album. Three superb local acts round out Friday’s bill: Harbour, Automagik and The Yugos. September’s MidPoint Music Festival sponsors the Indie Summer series, and there will be opportunities to purchase (or win) passes for the 2015 event each week.