Extracted from the AR FAQ,

What is the Scene mode?
[justify]This mode allows the pads to control user-assignable parameters, possible to derive from the whole This mode allows the pads to control user-assignable parameters, possible to derive from the whole kit. When the mode is active, pressing a pad will instantly change the assigned parameters to their locked scene values. Several scenes can be active at the same time.

What is the Performance mode?
Performance mode is a bit similar to the Scene mode, but allows gradual control over the parameters assigned to the pads. The harder you press a pad, the more the assigned parameters will be affected. Performance parameters are possible to derive from the whole kit.
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