Additionally, there are a few other controls:
- "Expression" lever (red text) that decouples the reservoir.
- "PP Bass / PP Disk." lever that closes panels over openings on the lower/upper half of the front of the instrument below the keyboard.
- "Prolongement" bar that, when pulled, will latch keys played in the bottom octave.
- Left knee lever that will gradually add stops, latching on in a full-organ position.
- Center knee lever. Not sure what this does. It may be similar to the PP Bass / PP Disk. lever, but if so, it operates on a different set of panels and is very subtle.
- Right knee lever that operates swell shades.
- Pitch is A440.