Moog Matriarch Manual page 8

MAKE THIS CONNECTION
Next, patch one of the MULT outputs to CUTOFF 1 IN as before. This just replicates the
patch as we had it before.
The fun begins when we take another MULT output and route it to a different attenuator.
By turning this second attenuator completely counter-clockwise we invert whatever
signal is patched into it. This means that when the modulation oscillator goes up, the
signal out of this inverted attenuator will go down and vice versa.
Inverting Attenuators and Stereo Movement | 8