What is that proportionality? 40 (?, guessed form a quick observation, could be wildly wrong) changes per beat?Speed defines the speed of the random changes proportional to the current tempo. 0% means that the speed is the same as your song's tempo.
What does -100% mean? Half the number of changes?
What does -200% mean? Quarter the number of changes?
What does 100% mean? Double the number of changes?
What does 200% mean? Quadruple the number of changes?
If so, wouldn't it be better if the speed values were expressed as "X / second" or "Y / beat"?
