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Amazon.com: Koogo Guitar Octave Digital Pedal Octpus Pedals for Electric Guitar Precise Polyphonic Octave Effect Generator Pedals With No Distorted Sound : Musical Instruments
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Pedal Genie | Electro-Harmonix Pitch Fork+ Polyphonic Octave Harmonizer | All Your Pedal Wishes, Granted
GitHub - dac922/octave-instrument-control: GPIB, USBTMC, serial, TCP, VXI11, and VISA instrument control for GNU octave.
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Rowin Polyphonic Octave Guitar Effects Pedal Pure Octopus Digital Mini Single Effect for Electric Guitar and Bass True Bypass LEF-3806 - Walmart.com
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