Atmosphere turn their attention to balmy days, breezy nights, and the moods that accompany them. That means silky G-funk on “Sunshine,” chipmunk soul on “The Number One,” and deep, slinky disco-funk on “RFTC.” Atmosphere’s eye for detail is as sharp as ever, whether it’s the too-real-for-comfort description of a hangover that opens the EP or the bittersweet recollection of a teenage joyride that closes it. As always in the duo’s work, even the simplest topic can open floodgates to a lifetime of eagle-eyed observations.