MOTM

...Paul, any plans in the far future for an MOTM Frequency Shifter? I know
J\ufffdrgen Haible has been working on one; I wonder how that's going/went.

I never used a frequency shifter, but ever since I read an Interview with
Wendy Carlos 15 years ago where she said that she used it to get her
classic, shimmery "Christmassy Sound," I've been curious. I've tried getting
a series of HP filters to track a keyboard for a really steep-sloped filter
to try to imitate one by just grabbing the upper sidebands of a Ring
Modulator's output, but that's so hack, and I never got it to work properly.

I understand there's a hell of a lot of circuitry involved in a true FS.