Features: · Resonance: This parameter sets how much physical resonance is modelled to simulate the wooden body of the Harmonium. · Chorus: This parameter controls the effect which is often called 'musette' or 'tremolo' in accordian terminology. · Ratio: This parameter changes the pitch difference Between the two Reed Banks. · Breath: This parameter controls the amount of 'air noise'. · Keys: This parameter controls the amount of keyboard noise simulated. · Volume: This parameter controls the output level of Peti. · Pitch: This parameter controls the master fine-tuning setting. · Velocity Sensivity: This parameter allows you to adjust the instrument's response to MIDI velocity. · MaxVoices: This parameter sets the polyphony of Peti, from 1 (mono legato) to 16. · Keyboard Coupler: This control emulates a mechanical 'coupler' which is found in some Harmoniums. It causes Two Notes to be played simultaneously by one key, with an interval which may be set to an octave, a fourth, or a fifth. · Scale Changer: This control shifts the keyboard pitch up to 5 semitones up or down. This allows the player to change key but retain the same fingering, e.g. to play Eb major scale all on white keys.