I based my bachelor's graduation project on Setahres' work. The one thing I wish we could find is the drum version of this. As in instead of starting from a st

I based my bachelor's graduation project on Setahres' work. The one thing I wish we could find is the drum version of this. As in instead of starting from a string (which leads to harmonic series), start from a circular membrane (which leads to a very complicated mathematical result based on bessel functions ircc).