Polyphonic octave generator. You can add one octave up, two octaves up, and one octave down and blend all of them together with straight-through signal. WORKS ON CHORDS. Want your guitar to sound like a 12 string? The POG can do it—or even make it sound like an 18 string. And the POG can do a lot more than that. Destined to be a legendary EH classic. The POG is a Poly Octave Generator. What does that mean exactly ? Well, the POG can simultaneously generate multiple octaves from your input signal. Whether you play single notes, arpeggios or full chords, the POG will track every note you play. With the POG, you can mix together your original "dry signal" with three different octaves - one above, two above, and one below your original note. You can also mix detuned versions of both the +1 Octave and +2 Octaves. At the end of the chain is a low pass filter to further tailor the sound you desire.