Singer and multi-instrumentalist Jocie Adams was an integral part of the much-loved folkies the Low Anthem for six years, but she departed amicably in 2013 to more firmly take the reins as a lead singer and songwriter, fronting Arc Iris (above, their video for “Whiskey Man”). Together with drummer Raymond Belli, trumpeter Mike Irwin, bassist Max Johnson, cellist Robin Ryczek and pianist and multi-instrumentalist Zachary Tenorio-Miller, Adams and crew make music with little regard for genre—hopping around rock, folk, country, Latin, pop, jazz, cabaret and classical. The eclectic sextet’s first album, Arc Iris, (stream it below), just came out last week, and the positive reviews have been rolling in: The Guardian calls the band “a shape-shifting treat,” and AllMusic says, “This self-titled debut album is nearly impossible to categorize. Though this bracing, fresh, nearly seamless meld of cabaret, folk traditions, country, rock, classical, cabaret and jazz is eclectic and ranging, it’s accessible to listeners of many stripes…. Arc Iris is an auspicious debut. This band’s disciplined, sensitive unity expresses Adams’ fresh, expansive musical vision with elegance and grit, humor and pathos, tenderness and sensuality.” See them play the early show tomorrow night at Mercury Lounge.