This patch is just a sawtooth, without even a filter. However it goes into a bank of four separate choruses. The knobs being adjusted control 1) the speed of the chorus effect (from 1/60th of a second, to 3Hz), 2) the frequency ranges affected, and 3) the volume of the resulting effect.
At the beginning and at 0:49 the effect volume is turned to 0 to remind you how boring a sawtooth is. The rest of the time the volume is cranked.
This chorus uses ONE delay, but has FOUR taps each being modulated independently. The first three move relatively rapidly, up and down an octave. The three ranges do not overlap. The fourth LFO ranges very slowly from very high to very low frequencies.
This group of choruses could be turned into a "user-defined module" and re-used across a variety of patches if you wished.
(The name SuperChorus is used by Boss as a trademark, it seems; this effect is unrelated and not meant to be a simulation.)
Note the sound is recorded directly from Moselle: no hardware or external processing was used.