Status Type
Midi channels 1 .. 16
Channel pressure
Number of the changed controller
Controller's new value
Controller's new value
Checks whether the status type of the message is 'Note Off' or 'Note On' with a velocity of 0.
Checks whether the status type of the message is 'Note On' _and the velocity value is actually greater than zero_.
Amount of pressure
Program number
This abstraction is similar to the one in IPlug. For VST raw MIDI messages are passed. For AU MIDI messages gets synthesized.