Constant Gardener is a 'live' phase vocoder. Send it sound via the audio input jack and and you will be able to change its pitch and speed independently.
The keys control specific pitch intervals from an octave below original (low C) to a major 7th above original. Unison is the upper C key on the Organelle keyboard.
Knob3: Dry / Wet Mix
Aux & Footswitch: Start & Stop phase vocoder.