These are files to enhance the microtonal support in LilyPond,
incuding Sagittal and Extended Helmholtz-Ellis notations.
It probably came from http://x31eq.com/lilypond/ or
The Sagittal font and musical examples were provided by
Dave Keenan and George Secor.
There's some kind of license on them.
The code to implement the example is mine.
The HE font for Extended Helmholtz-Ellis Pitch Notation
is shareware and can be download from www.plainsound.org.
Install it as a system font.
Everything else you can do what you like with.
regular.ly -- Standard file for JI retuning, used by the Athenian and
addmts.py, addmts.py3 -- Retune output MIDI files to use the
MIDI Tuning Standard
Sagittal2.0d10.otf -- the Sagittal font. Check for the latest at
sagittal.ly -- support code for the Sagittal glyphs.
athenian.ly -- support for just intonation with Athenian EDA accidentals.
promethean.ly -- more precise accidentals than Athenian
ji12.ly -- just intonation written as 12 note equal temperament.
(This makes sense when used with cents.)
sagji.ly -- common code for Sagittal with just intonation
trojan72.ly -- just intonation rounded off to 72-EDO
sag72.ly -- ratios mapped to 72-equal
sagji72.ly -- just intonation with accidentals for 72-equal
trojan60.ly sag60.ly sagji60.ly -- Same things with 60 divisions
sagji224.ly -- Athenian accidentals but consistently applied
according to 224-equal.
trojan.ly -- common code for Trojan notations of JI
he.ly -- Extended Helmholtz-Ellis JI Pitch Notation support
scheme-et.ly scheme-music.ly -- helper code for JI input
ratios.ly -- example of JI duplicating the Sagittal paper. Output in
ratios.pdf and ratios.midi
harmonics.ly -- the harmonic series in Extended Helmholtz-Ellis
subharmonics.ly -- another Extended Helmholtz-Ellis Pitch Notation
example matching one of the defining papers.
fig6.ly -- another Sagittal example