This character is a Other Symbol and is commonly used, that is, in no specific script. The character is also known as double whole-rest and breve rest.
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+1D13A forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In music, a double whole note (American), breve (British) or double note lasts two times as long as a whole note (or semibreve). It is the second-longest note value still in use in modern music notation. The longest notated note is the longa, which could be double or triple the length of a breve, although its use is most commonly found in early music. The longest notated note (though now obsolete) is the maxima.
Representations
System
Representation (click value to copy)
NΒΊ
119098
UTF-8
F0 9D 84 BA
UTF-16
D8 34 DD 3A
UTF-32
00 01 D1 3A
URL-Quoted
%F0%9D%84%BA
HTML hex reference
𝄺
Wrong windows-1252 Mojibake
Γ°ΒβΒΊ
alias
double whole-rest
alias
breve rest
Encoding: GB18030 (hex bytes)
94 32 C1 32
RFC 5137
\u'1D13A'
Bash and Zsh inside echo -e
\U0001D13A
C and C++
\U0001D13A
C#
\U0001D13A
CSS
\01D13A
Excel
=UNICHAR(119098)
Go
\U0001D13A
JavaScript
\uD834\uDD3A
Modern JavaScript since ES6
\u{1d13a}
JSON
\uD834\uDD3A
Java
\uD834\uDD3A
Lua
\u{1D13A}
Matlab
char(119098)
Perl
"\x{1D13A}"
PHP
\u{1d13a}
PostgreSQL
U&'\+01D13A'
PowerShell
`u{1D13A}
Python
\U0001D13A
Ruby
\u{1d13a}
Rust
\u{1d13a}
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