Your Shepard tone sounds good, both up and down.
Interesting that Telharmonic has that as an option. Have to put that module on my wish list.
I tried Lugias patch but I do not have enough EG/VCO combos and my Seq Switch could not (as I hoped) work as a trigger sequencer.
Then I tried a patch from a Youtube video that seemed to be easier. Only 2 VCO, 2 LFO and 3 VCA. But with limited success.

But I will continue to struggle with theese two patches.
A Shepard tone would be a perfect backdrop for an ambient piece I’m working with.