This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+266E forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In modern Western music notation, a natural (♮) is a musical symbol that cancels a previous sharp or flat on a note in the written music. The sharp or flat may be from a key signature or an accidental. The natural indicates that the note is at its unaltered pitch.
Representations
System
Representation (click value to copy)
Nº
9838
UTF-8
E2 99 AE
UTF-16
26 6E
UTF-32
00 00 26 6E
URL-Quoted
%E2%99%AE
HTML hex reference
♮
Wrong windows-1252 Mojibake
â™®
HTML named entity
♮
HTML named entity
♮
Encoding: EUC_JIS_2004 (hex bytes)
A2 FA
Encoding: EUC_JISX0213 (hex bytes)
A2 FA
Encoding: GB18030 (hex bytes)
81 37 AD 32
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 28 51 22 7A 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 28 4F 22 7A 1B 28 42
Encoding: SHIFT_JIS_2004 (hex bytes)
81 F8
Encoding: SHIFT_JISX0213 (hex bytes)
81 F8
LATEX
\natural
digraph
Mx
RFC 5137
\u'266E'
Bash and Zsh inside echo -e
\u266E
C and C++
\u266E
C#
\u266E
CSS
\00266E
Excel
=UNICHAR(9838)
Go
\u266E
JavaScript
\u266E
Modern JavaScript since ES6
\u{266e}
JSON
\u266E
Java
\u266E
Lua
\u{266E}
Matlab
char(9838)
Perl
"\x{266E}"
PHP
\u{266e}
PostgreSQL
U&'\266E'
PowerShell
`u{266E}
Python
\u266E
Ruby
\u{266e}
Rust
\u{266e}
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