given a beat number that increments every note (say 33), a root (say 50), and a pattern (say [0 -2 -4 -2]), and a list of layers (say (4,16))

i wanna iterate over the pattern every 1 so it completes the cycle every 4:  0, -2, -4, -2
and also every four so it completes the cycle every 16 0 0 0 0 -2 -2 -2 -2 etc..

so to isolate the question I lets focus on 16: what mathmatically would represent getting 0 0 0 0 1 1 1 1 2 2 2 2 (the indexes)

i tried this (int (/ (mod beat (count pattern)) 4) but obviously didnt work.