Thanks, I'll take a closer look at the EH notation and see if I can alter it. Hans
Sent from my Samsung Galaxy smartphone.-------- Original message --------From: Graham Breed <gbr...@gmail.com> Date: 29/12/2017 19:13 (GMT+01:00) To: allfifthstuning <allfifthstun...@kliksafe.nl>, Urs Liska <li...@openlilylib.org> Cc: lilypond-user <lilypond-user-bounces+allfifthstuning=kliksafe...@gnu.org>, lilypond-user@gnu.org Subject: Re: (modified) Ben Johnston tuning system script On 28/12/17 13:16, allfifthstuning wrote: > > > I've described my method of determining a note name (see attachment). > > Currently I'm reading the scheme git book > (https://scheme-book.ursliska.de/) which is very helpful. > > Do I understand correctly that to determine the right note name with EH > and Sagittal notation that a ratio is checked against a list of ratios > and corresponding glyphs? The two work differently. Both factorize the ratio (relative to the base notes). Sagittal converts that into an equal temperament, and then assigns a string (not always a single glyph) to each step of the equal temperament. (This is not quite how Sagittal should work.) For Helmholtz notation, the factorized ratio maps to a set of glyphs used for notating small intervals, one for each prime number. Then it combines those glyphs to get a string for the full accidental. The same process should work for Johnston notation. Graham _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
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