(Guitar Educational). In recent years, looping has exploded in popularity, with countless players exploiting the newest technology to truly become "one-person bands." From the mostly guitar-based looping of Ed Sheeran, to the vocal-heavy layering of Reggie Watts or the multi-instrument sonic walls of sound from Jacob Collier, artists of disparate genres are turning the looping concept into an art form unto itself. In Looper Pedal Guitar Lessons, author...