The HOG is an Octave and Harmonic Generator/Guitar Synthesizer that can simultaneously generate multiple octaves and harmonics from your inpu signal ! Whether you play single notes, arpeggios or full chords, the HOG will track every note you play. In addition, the HOG comes with 7 Expression Modes that enable you to modify your sounds using a standard Expression pedal, MID controller or the Expression button on the HOG itself!