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FM (Phase modulation) can sound amazing. You just have to know how it works and how to wield it. It's not a very intuitive model, unlike additive or subtractive.
It gets especially interesting when you realise you don't have to be restricted to sine waves. Any periodic function, by definition, can be phase modulated.
So, if you use triangle or saw waves carriers and a triangle for the modulator, you can create a sort of resonant sweep that you'd normally end up using filters for. Or you can replicate behaviours like oscillator sync and various other conceptually "subtractive" ideas.
Many of the sound in this experiment were created using phase modulation of one form or another
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