Three songs totaling three-quarter hours. That’s a scenario you’d expect from masterful instrumental acts like Godspeed You! Black Emperor or early electronic geniuses like Klaus Schulze. In a way, on Aerial Roots CJ Boyd channels both artists. He has the instrumental aspects of the former and the minimalist drone of the later. “Everytime I Don The Ski Mask” mixes various loops and, for the most part, maintains a delicate balance between complex minimalism and meditative consistency. Aerial Roots is an expansive aural state of being …