Build on the Positivity w/Impressionist at JB’s Dec. 15

These unseasonably warm temperatures have spawned a fresh optimism. Tonight, the multi-faceted Kyle Press-led ensemble, otherwise known as Impressionist, aims to build on that positive spin. Loose, dashing forward in a freeing manner, their tunes are enhanced through the fine attention to detail afforded by a large toolbox of instrumentation. Impressionist can paint with musical dimension; breezy and smooth can quickly transition to turbulent an ominous as keys, horns sax stir the sonic air. Through it all, an engaging, shape-shifting, organic puzzle keeps you consistently on alert. A pair of Atlanta-based bands, including Red Sea, whose laid-back grooving pop is spiked with hyperactive flurries, and the fascinating, classically-framed, modern-spun, vast landscapes of Faun and a Pan Flute, are sandwiched between the ongoing, experimental, noise-infused exploits of avant-pop trio Banned Books, who completes a billing that is comforting while pushing the traditional limits. Johnny Brenda’s, 1201 N. Frankford Ave., 9pm, $10, 21+ – Michael Colavita