Check out Earthquaker Devices' newest pedals, The Depths Optical Vibe Machine and Arpanoid Polyphonic Pitch Arpeggiator.

Premier Guitar's Tessa Jeffers is on location in Nashville, Tennessee, where she visits the Earthquaker Devices booth and learns more about their newest pedals - The Depths Optical Vibe Machine and Arpanoid Polyphonic Pitch Arpeggiator.

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