Interesting sound design trick for ethereal chord pads with a wavetable synth: modulate wave scan speed with key/pitch tracking such that higher pitch means faster scan speed. Makes it such that each note’s timbre is always in a slightly different spot/rate than the other notes in the chord. Got the idea from a video on old school 90’s IDM techniques, where they would load one shot, single note samples from a monosynth into a sampler and then use looping/ping-ponging of the sample to play chords. Because it was the days before readily available time stretching each note would run through the sample at a different speed, and I figured pitch modulating wave scan speed would do something similar.
I do something like this with the Hydrasynth. The 2.0 firmware lets you set modulation values per voice. I thought it was a bit gimmicky at first, but if you set it up to use different wavetables or scan rates per voice, you get some really interesting results.