The earliest known scientific hypothesis test was a Pythagorean investigation of whether the mathematical model for consonance in stringed instruments generaliz

The earliest known scientific hypothesis test was a Pythagorean investigation of whether the mathematical model for consonance in stringed instruments generalized to chimes — so rather than 1:2 as a ratio of string length, whether a ratio of 1:2 in chime thickness also produces an octave. It does. (This experiment was conducted by Hippasus and recorded by Aristoxenus, a student of Aristotle) But interestingly, we still have big open gaps in our scientific models of consonance and dissonance. Consonant tones involve a large number of shared harmonics. That alignment appears to be important in the perception of consonance and dissonance. Yet, harmonic alignment is not currently a mechanism used in the algorithmic detection of consonance/dissonance, so far as I know. This tool looks like a good way to generate stimuli for experimentation, thanks!