Added an even-odd mode which inverts the even and odd channels. Useful for separating the even and odd harmonics

@RobertSyrett, Thought I’d try for something a bit more complex than a simple tilt. I kind of overdid it with modulation in the demo patch. Modulating one knob at a time is probably more useful. The labels on the knobs are a bit misleading because they all interact. I felt like the meters were necessary to see what it it’s doing. You really have to play with it. Like the new profile pic!

Has anyone built a 16 band equalizer? This would be a good match.

How would you do it? A bunch of bandpass filters? This would be a nice place for FFT node, though that raises more questions than answers.

Bandpass filters configured to boost or cut a frequency band, I believe. I don't think biquads would be the best choice for this since they apparently don't respond well to rapid modulation.

I redid the tiltatron using sine waves. More interesting patterns I think. In the demo I'm using it to drive a harmonic generator that outputs reverse saws instead of sine waves. The generator has a gate to switch all the odd harmonics to saws. The strategy I used to eliminate aliasing on the sine wave unit doesn't really work on saws, so there's some aliasing, but really who cares with saws?