Notes and source: http://awforsythe.com/tutorials/pyfbs...

MotionBuilder SDK Documentation:
2013: http://www.autodesk.com/motionbuilder...
2012: http://www.autodesk.com/motionbuilder...
2011: http://download.autodesk.com/us/motio...

Part Two is an attempt to teach a man to fish, as it were, by pointing out some of the resources that can be used to decipher the occult mysteries of the MotionBuilder API.