Modern acoustic guitarist and "lap tap" master Erik Mongrain shows you how to play his song AirTap, from the 2006 album, Fates. This advanced-level, medium-tempo song can be played with a single steel string acoustic guitar tuned to an unusual Open F tuning (the strings are tuned F A C F C F from low to high). This unique style of playing involves left-hand rhythm patterns with percussive harmonic