does anybody know about these accidentals?

[Hans Åberg]

> On 23 Jul 2024, at 12:41, Marius Spix via Unicode <unicode at corp.unicode.org> wrote:
> 
>   I already dicussed that in the thread "Reference glyphs of musical accidentals quarter sharp and quarter flat". In my opinion, the reference glyphs for these characters are incorrect.

They are similar to the septimal quarter tone notation [1] used by Ben Johnston [2], which attaches a "7", possibly upside down, to the standard accidentals.

1. https://en.wikipedia.org/wiki/Septimal_quarter_tone
2. https://en.xen.wiki/w/Ben_Johnston%27s_notation