An experiment with a VST synthesizer tuned to the cycles of the sine wave function. It could be considered an irregular or unconventional temperament. The semitones have a varied width, and they rise or fall in pitch as determined by the cycle of the sine wave function.
Created with Pistachiotone MR-65 from Chromatic Instruments, Cubase 14 Pro from Steinberg, and Kontakt from Native Instruments