Random ‘is it going up or down?’ paradox with random intervals

My video playing on the violin gave me the idea to use random intervals.

To do this, I need a simple tweak: instead of adding 6, I will be adding a variable that is periodically assigned to a random value:

interval= rrand(3,9)
q=l+interval
r=m+interval
s=n+interval
t=o+interval

And this is all it took to make this paradox general to other intervals.