What 𝈘 means
It marks the first sharpening in the g′ group.
Each base pitch had two successive sharpenings. “First sharp” is a scholarly label; ′ in g′ marks a higher register.
How old is this notation?
The system was established by the middle of the third century BCE.
Papyri found in Egypt—ancient documents on papyrus sheets—preserve vocal signs beside lyrics.
Part of the collection
Don't confuse it with
1
Questions people ask
1Why does 𝈘 show as a box?
A font may lack this sign, showing a box or blank; the stored character remains 𝈘.
How to type or find 𝈘
- Search it as
- ancient Greek notation · g′ first sharp · rotated psi
- Shows up in
- Anything that takes text · its shape is whatever your font draws
Windows (Word)
Windows
HTML
𝈘CSS
\1D218Microsoft Word
Type 1D218 in Word, then press AltX (as of 2026-10-08).
Codes and encoding1 code points
HTML decimal
𝈘
HTML hex
𝈘
CSS content
content: "\1D218";
Each escape is closed by the next backslash; a trailing space is needed before a literal hex digit.
URL encoded
%F0%9D%88%98
1
On screen
1
Code points
2
JS .length
4
UTF-8 bytes
A visible symbol can contain several code points. JS .length counts UTF-16 units; UTF-8 counts bytes.