Incomplete coverage of ancient Greek musical notation

[dscorbett]

Font

NotoMusic-Regular.otf

Where the font came from, and when

Site: https://github.com/googlei18n/noto-fonts/blob/9176dad6dc8ee09b552f9f6de36c4e9b19f8e7ea/phaseIII_only/unhinted/otf/NotoMusic/NotoMusic-Regular.otf
Date: 2018-09-27

Font version

Version 2.000

Issue

Noto Music’s coverage of ancient Greek musical notation is incomplete: it only includes the characters in the Ancient Greek Musical Notation block. The other base symbols are unified with the Greek capital letters U+0391 to U+03A1, U+03F9 (not U+03A3), and U+03A4 to U+03A9, and U+2127 INVERTED OHM SIGN. The other diacritics are unified with U+0305 COMBINING OVERLINE (diseme) and U+0307 COMBINING DOT ABOVE (stigme). These all need to be in Noto Music, instead of relying on font fallback, so that mark attachment can work. Sources: L2/02-316, The TLG Beta Code Manual.