It is on stringed instruments one gets the Pythagorean tuning. A flute does not have such relative pitch references.
> On 6 Aug 2021, at 21:41, Kees van den Doel <[email protected]> wrote: > > Excuse me for being direct, but this is nonsense. It's nice you've read that > (outdated) book but I've been actively performing Persian music for decades > and I know how we tune. If you want to learn check out my website > https://persianney.com. > > Kees > > > > On Fri, Aug 6, 2021 at 11:47 AM Hans Åberg <[email protected]> wrote: > >> On 6 Aug 2021, at 18:46, Kees van den Doel <[email protected]> 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. >
