hageir wrote: anybody know where those waveforms are from? might be a few "real" ones from vintage synths, right? Yeah I guess the first thought is that some of them are sampled from some odd gear. While making the images, I kinda started assume, that they are collection of different methods to create different overtone-series. At least, I would approach the matter from that kind of angle. Some of them might be coming from frequency modulation field, while others are different versions of the plain square/saw.