Tag Archives: octave pedal

Donner Harmonic Square Demo and Review

A demo and review of the excellent value Donner Harmonic Square pitch shifting mini pedal. Gear Used (Amazon links are affiliate links) Donner Harmonic Square: https://amzn.to/2OvCU2j Behringer UMC202HD guitar interface: https://amzn.to/2Oo0JIU Stay in Touch Twitter…