> On 6 Aug 2021, at 18:46, Kees van den Doel <kvd...@gmail.com> wrote: > > Well I know Persian music very well, and the tuning as-is is perfect, so I'm > not sure what we are talking about here. > Persian music doesn't "raise by commas". There are no "different tunings", > there is the current MIDI tuning which is correct and anything different is > wrong.
The values you have set are wrong from the theoretical point of view: Persian music uses the Pythagorean tuning of which E53 is a close approximation. The average values that Hormoz Farhat's Dastgah book indicates is a neutral second raised about two commas from the minor second, which is what one typically uses. E53 has a sharp that is 5 commas, but a minor second m = 4 and a major second M = 5, which is what Graham Breed's file regular.ly does. You have merely divided the LilyPond sharp into 5 parts, then using the theoretical comma values indicated above, without adjusting the minor and major seconds, so you land on E60.
