By Sam Tornow, Editorial Director [Arts & Crafts; 2017] Rating: 6.5/10 Key Tracks: “The Observable Universe,” “Novachord,” “The Hubble Constant” A kindergarten teacher who passed out demo tapes to his students turned experimental hip-hop DJ who has collaborated with Gorillaz and helped form the supergroup Deltron 3030, while simultaneously creating graphic novels. Kid Koala’s journey seems…