U+1D138 Musical Symbol Quindicesima Alta
U+1D138 was added in Unicode version 3.1 in 2001. It belongs to the block
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+1D138 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
In music, a fifteenth or double octave, abbreviated 15ma, is the interval between one musical note and another with one-quarter the wavelength or quadruple the frequency. It has also been referred to as the bisdiapason. The fourth harmonic, it is two octaves. It is referred to as a fifteenth because, in the diatonic scale, there are 15 notes between them if one counts both ends (as is customary). Two octaves (based on the Italian word for eighth) do not make a sixteenth, but a fifteenth. In other contexts, the term two octaves is likely to be used.
For example, if one note has a frequency of 400Β Hz, the note a fifteenth above it is at 1600Β Hz (15maβ), and the note a fifteenth below is at 100Β Hz (15mbβ). The ratio of frequencies of two notes a fifteenth apart is therefore 4:1.
As the fifteenth is a multiple of octaves, the human ear tends to hear both notes as being essentially "the same", as it does the octave. Like the octave, in the Western system of music notation notes a fifteenth apart are given the same nameβthe name of a note an octave above A is also A. However, because of the large frequency distance between the notes, it is less likely than an octave to be judged the same pitch by non-musicians. Passages in parallel fifteenths are much less common than parallel octaves. In particular, sometimes an organist will use two stops a fifteenth away (notated as 2β²).
Representations
System | Representation |
---|---|
NΒΊ | 119096 |
UTF-8 | F0 9D 84 B8 |
UTF-16 | D8 34 DD 38 |
UTF-32 | 00 01 D1 38 |
URL-Quoted | %F0%9D%84%B8 |
HTML hex reference | 𝄸 |
Wrong windows-1252 Mojibake | Γ°ΒβΒΈ |
Elsewhere
Complete Record
Property | Value |
---|---|
3.1 (2001) | |
MUSICAL SYMBOL QUINDICESIMA ALTA | |
β | |
Musical Symbols | |
Other Symbol | |
Common | |
Left To Right | |
Not Reordered | |
none | |
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|
β | |
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|
β | |
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|
|
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
|
|
Any | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
0 | |
0 | |
0 | |
β | |
None | |
β | |
NA | |
Other | |
β | |
β | |
β | |
β | |
β | |
Yes | |
Yes | |
|
|
Yes | |
|
|
Yes | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
Other | |
β | |
β | |
β | |
β | |
β | |
Other | |
β | |
β | |
β | |
β | |
β | |
β | |
β | |
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None | |
neutral | |
Not Applicable | |
β | |
No_Joining_Group | |
Non Joining | |
Alphabetic | |
none | |
not a number | |
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U |