T-Rex Engineering QUINT-MACHINE Pitch Guitar Effects Pedal with Fully Adjustable Octave Up, Octave Down, and Fifth Up Controls; Simulating Organ, Synth or 12-String Sound (10094) Three different, highly tunable tones to enhance your sound - octave up, octave down, and 5th up Adjust each tone individually and mix your effected sound with a clean signal +1 Octave adds a note that is 1 octave higher and -1 Octave adds a note that is 1 octave lower than the note you play +1 Fifth adds a note that is a fifth higher than the note you play Replicate organ, synth or 12-string sound