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 is written from left to right. When changing direction it is not mirrored. The word that U+1D135 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Alla breve[allaΛbrΙΛve] β also known as cut time or cut common time β is a musical meter notated by the time signature symbol (a C with a vertical line through it), which is the equivalent of 2 2. The term is Italian for "on the breve", originally meaning that the beat was counted on the breve.
Alla breve is a "simple-duple meter with a half-note pulse". The note denomination that represents one beat is the minim or half-note. There are two of these per bar, so that the time signature 2 2 may be interpreted as "two minim beats per bar". Alternatively this is read as two beats per measure, where the half note gets the beat.
The name "common time" refers to 4 4, which has four beats to the bar, each of a quarter note (or crotchet).
Representations
System
Representation (click value to copy)
NΒΊ
119093
UTF-8
F0 9D 84 B5
UTF-16
D8 34 DD 35
UTF-32
00 01 D1 35
URL-Quoted
%F0%9D%84%B5
HTML hex reference
𝄵
Wrong windows-1252 Mojibake
Γ°ΒβΒ΅
Encoding: GB18030 (hex bytes)
94 32 C0 37
RFC 5137
\u'1D135'
Bash and Zsh inside echo -e
\U0001D135
C and C++
\U0001D135
C#
\U0001D135
CSS
\01D135
Excel
=UNICHAR(119093)
Go
\U0001D135
JavaScript
\uD834\uDD35
Modern JavaScript since ES6
\u{1d135}
JSON
\uD834\uDD35
Java
\uD834\uDD35
Lua
\u{1D135}
Matlab
char(119093)
Perl
"\x{1D135}"
PHP
\u{1d135}
PostgreSQL
U&'\+01D135'
PowerShell
`u{1D135}
Python
\U0001D135
Ruby
\u{1d135}
Rust
\u{1d135}
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