Polyphonic Drop Tune Pedal The DigiTech Drop is a dedicated polyphonic drop tune pedal that allows you to drop your tuning from one semitone all the way down to a full octave. Get down-tuned chunk without having to change guitars! The Drop also features a momentary/latching switch. With the switch set to momentary, you can turn the Drop into a true performance pedal. Fast trills and roller-coaster pitch dips are at the tip of your toes. Drop Effect Amount LEDs: Shows which Drop effect has been selected using the Effect Selector knob, settings include:1 - Transposes guitar signal down 1 semitone.2 - Transposes guitar signal down 2 semitones.3 - Transposes guitar signal down 3 semitones.4 - Transposes guitar signal down 4 semitones.5 - Transposes guitar signal down 5 semitones.6 - Transposes guitar signal down 6 semitones.7 - Transposes guitar signal down 7 semitones.OCT - Transposes guitar signal down 1 octave.OCT + DRY - Transposes guitar signal down 1 octave and adds dry signal.