Meng Qi made a calculator based on the concept of Critical Bandwidth

OneBeat 2019 Alumni Meng Qi who is pioneering synthesizer designer and musician, has made a calculator based on the concept of Critical Bandwidth. “It returns the percentage of tonal pitch intervals given base pitch and ranges of numerator and denominator. It‘s to aid the decision-making for the ranges of controls on a musical instrument. As musicality lies in a range, experimentation lies on its edges, and controllability is better when the range is smaller. We do want a healthy balance of all three elements.”

get it: https://github.com/mengqimusic/tools

Other instruments he has built include the Wing Pinger “a remarkable new analog music instrument that allows you to combine melody and noise in perfect harmony.”