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+1D192 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In music, the dynamics of a piece are the variation in loudness between notes or phrases. Dynamics are indicated by specific musical notation, often in some detail. However, dynamics markings require interpretation by the performer depending on the musical context: a specific marking may correspond to a different volume between pieces or even sections of one piece. The execution of dynamics also extends beyond loudness to include changes in timbre and sometimes tempo rubato.
Representations
System
Representation (click value to copy)
NΒΊ
119186
UTF-8
F0 9D 86 92
UTF-16
D8 34 DD 92
UTF-32
00 01 D1 92
URL-Quoted
%F0%9D%86%92
HTML hex reference
𝆒
Wrong windows-1252 Mojibake
Γ°Ββ β
Encoding: GB18030 (hex bytes)
94 32 CA 30
RFC 5137
\u'1D192'
Bash and Zsh inside echo -e
\U0001D192
C and C++
\U0001D192
C#
\U0001D192
CSS
\01D192
Excel
=UNICHAR(119186)
Go
\U0001D192
JavaScript
\uD834\uDD92
Modern JavaScript since ES6
\u{1d192}
JSON
\uD834\uDD92
Java
\uD834\uDD92
Lua
\u{1D192}
Matlab
char(119186)
Perl
"\x{1D192}"
PHP
\u{1d192}
PostgreSQL
U&'\+01D192'
PowerShell
`u{1D192}
Python
\U0001D192
Ruby
\u{1d192}
Rust
\u{1d192}
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