Keeley's Octa Psi Is a Pitch-Shifting, Octave-Generating Analog Fuzz | Tone Report Demo
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This Fuzz/Harmonizer Is Absolutely WILD! | Keeley Electronics Octa-Psi Transfigurating Fuzz
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Octa Psi Transfigurating Fuzz Demo | Featuring Aaron and Robert | Keeley Electronics
25:13
The Inspiring Keeley OCTA PSI + Wampler, Soldano Pedals! | Tales From the Pedal Cabinet - Episode 35
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What Happens When You Combine Pitch Shifting & Fuzz? Keeley Octa Psi Demo
42:17
Keeley Electronics Octa Psi Transfigurating Fuzz Expression Pedal 1st play PedalScapes
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Ampsims and input gain - Please, stop the madness...
29:31
PRO Guitar Tricks AMATEURS Need To Know
19:12