opcode Fade1, 0, kk
  kMod, kMix xin
  k1 zkr 1 ;CHANGE
  kmod zkr 3; CHANGE
  
  kMix += kMod ;+ limiter?
  kL = k1*kMix
  kR = k2*(1-kMix)
  
  zkw kL, 2 ; CHANGE
  zkw kR, 2 ; CHANGE
endop
