Electro Harmonix Micro POG

The Behringer Ultra Octaver UO300 3-Mode Octaver guitar effects pedal puts your guitar on steroids, giving the notes you play some extra tonal muscle one and two octaves below their actual octave. The UO300’s Range knob lets you choose whether you want to beef up your high, middle, or low frequencies; the Direct knob lets you dial in how much of your original sound you want to shine through; and the Oct 1 and Oct 2 knobs control the lower octaves you wish to add.

The Arpanoid guitar effects pedal from EarthQuaker Devices is a polyphonic pitch arrpegiator; play a note and it automatically generates a scale based on that root note. Even better is that it doesn’t just track notes—even complex chords can get arpeggiated. It features eight selectable minor and major patterns that go from one octave below the root note to one above, plus you can select whether you want the arpeggios to be ascending or descending.