The mc.evolve~ object can be viewed as a multichannel signal generator that synchronizes activity across output channels. In this recipe, we use breakpoint functions to control the rate of a set of pulse trains and the central frequency of resonant filters by scaling the mc.evolve~ output.
Note that mc.evolve~ creates four simultaneous outputs on four channels; each controls the rate and pitch of a unique mc.train~/mc.reson~ pairing.