“Two Arrows,” a slice of daydream-y jangle from Real Estate’s fourth LP, concludes with a spiraling, psychedelic crescendo—electric guitars, synthesizers and bass crisscross into a drowsy river of sound, then suddenly crash mid-wave. It’s the indie-rock equivalent to the abrupt collapse of The Beatles’ “I Want You (She’s So Heavy).” At first, that anticlimax feels like a creative cop-out. But it could be a wink to the Brooklyn quartet’s mastery of breezy, unhurried mood: For all we know, their recording software malfunctioned, but the band’s still out there, ascending to the song’s massive peak. Real Estate marks a new chapter with In Mind, moving forward without co-founder/guitarist Matt Mondanile. But they absorb that personnel blow with shocking confidence, responding with their most fluid, dynamic batch of material. Real Estate has always been a guitar band first and foremost, building tracks around the interlocking melodies of Mondanile and chief songwriter Martin Courtney. They maintain that focus on In Mind while utilizing a wider assortment of effects (the distorted rumble on “Two Arrows,” the wahwah blasts of “Serve the Song”) that enrich the color palette of Courtney’s stories. The hazy production of their first three LPs remains part of their homespun charm, but In Mind’s gleaming, hi-fi mix highlights their expanded arrangements: the lush vocal harmonies on “Stained Glass,” the downpour of vintage synths during “Holding Pattern,” the jagged rhythmic shifts of “Darling,” Courtney’s boyish falsetto radiating over the drum machine and slide guitar of “After the Moon.” If Real Estate’s earlier work is a rainy afternoon nap, then In Mind is the post-storm rainbow.