does anybody know about these accidentals?

[Robin Leroy]

(Resending this message from an address that is subscribed to the list so
it properly gets sent to it; apologies to Werner & Jean who will already
have seen it.)
Le mar. 23 juil. 2024 à 06:53, Werner LEMBERG via Unicode <
unicode at corp.unicode.org> a écrit :

> we wonder about the origin of [𝄲 and 𝄳]
>
For context I think this post is what sparked the present thread:
https://bsky.app/profile/gro-tsen.bsky.social/post/3kxvoiguyqf2o

As noted in the replies there, I have managed to find them used in a score
(from 1998, like the proposal):
https://www.kitbraz.info/solo-performer-scores/sonar-como-una-tromba-larga-to-sound-like-a-great-waterspout-a6r45

In further discussion on Bluesky, Jean wondered whether this was really 𝄲,
or a normal half-sharp* with a digit 4 sticking out.
It turns out that one can get a higher-resolution image of the score by
playing with URL parameters, and it is really 𝄲, with two vertical lines:
https://images.squarespace-cdn.com/content/v1/5d4d94ab78e49900019e6d23/1626899038486-BVADHF5950LJU6VKRWW0/Sonar-11x17+page+6.jpg?format=2500w

—
* With one vertical line, provisionally assigned at U+1D1EB by UTC decision
178-C37 <https://www.unicode.org/L2/L2024/24006.htm#178-C37>.
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