𝄸

U+1D138 MUSICAL SYMBOL QUINDICESIMA ALTA

U+1D138 was added to Unicode in version 3.1 (2001). It belongs to the block Musical Symbols in the Supplementary Multilingual Plane.

This character is a Other Symbol and is commonly used, that is, in no specific script.

The glyph is not a composition. It has a Neutral East Asian Width. In bidirectional context it acts as Left To Right and is not mirrored. In text U+1D138 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

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. 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 (15ma ), and the note a fifteenth below is at 100Β Hz (15mb ). 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 nameβ€”the 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 2β€²).

Like the notation 8va for octave, 15ma (Italian: quindicesima) means "play two octaves higher than written." It could also mean two octaves lower, but that is usually notated 15mb. Either direction can be cancelled with the word loco, but often a dashed line or bracket indicates the extent of the music affected.

The notations 16va and 16vb are sometimes mistakenly used instead.

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-Escape 𝄸
Wrong windows-1252 Mojibake 𝄸

Elsewhere

Complete Record

Property Value
Age (age) 3.1
Unicode Name (na) MUSICAL SYMBOL QUINDICESIMA ALTA
Unicode 1 Name (na1) β€”
Block (blk) Music
General Category (gc) Other Symbol
Script (sc) Common
Bidirectional Category (bc) Left To Right
Combining Class (ccc) Not Reordered
Decomposition Type (dt) None
Decomposition Mapping (dm) 𝄸
Lowercase (Lower) ✘
Simple Lowercase Mapping (slc) 𝄸
Lowercase Mapping (lc) 𝄸
Uppercase (Upper) ✘
Simple Uppercase Mapping (suc) 𝄸
Uppercase Mapping (uc) 𝄸
Simple Titlecase Mapping (stc) 𝄸
Titlecase Mapping (tc) 𝄸
Case Folding (cf) 𝄸
ASCII Hex Digit (AHex) ✘
Alphabetic (Alpha) ✘
Bidi Control (Bidi_C) ✘
Bidi Mirrored (Bidi_M) ✘
Bidi Paired Bracket (bpb) 𝄸
Bidi Paired Bracket Type (bpt) None
Cased (Cased) ✘
Composition Exclusion (CE) ✘
Case Ignorable (CI) ✘
Full Composition Exclusion (Comp_Ex) ✘
Changes When Casefolded (CWCF) ✘
Changes When Casemapped (CWCM) ✘
Changes When NFKC Casefolded (CWKCF) ✘
Changes When Lowercased (CWL) ✘
Changes When Titlecased (CWT) ✘
Changes When Uppercased (CWU) ✘
Dash (Dash) ✘
Deprecated (Dep) ✘
Default Ignorable Code Point (DI) ✘
Diacritic (Dia) ✘
East Asian Width (ea) Neutral
Extender (Ext) ✘
FC NFKC Closure (FC_NFKC) 𝄸
Grapheme Cluster Break (GCB) Any
Grapheme Base (Gr_Base) βœ”
Grapheme Extend (Gr_Ext) ✘
Hex Digit (Hex) ✘
Hangul Syllable Type (hst) Not Applicable
Hyphen (Hyphen) ✘
ID Continue (IDC) ✘
Ideographic (Ideo) ✘
ID Start (IDS) ✘
IDS Binary Operator (IDSB) ✘
IDS Trinary Operator and (IDST) ✘
InMC (InMC) β€”
Indic Positional Category (InPC) NA
Indic Syllabic Category (InSC) Other
ISO 10646 Comment (isc) β€”
Joining Group (jg) No_Joining_Group
Join Control (Join_C) ✘
Jamo Short Name (JSN) β€”
Joining Type (jt) Non Joining
Line Break (lb) Alphabetic
Logical Order Exception (LOE) ✘
Math (Math) ✘
Noncharacter Code Point (NChar) ✘
NFC Quick Check (NFC_QC) Yes
NFD Quick Check (NFD_QC) Yes
NFKC Casefold (NFKC_CF) 𝄸
NFKC Quick Check (NFKC_QC) Yes
NFKD Quick Check (NFKD_QC) Yes
Numeric Type (nt) None
Numeric Value (nv) NaN
Other Alphabetic (OAlpha) ✘
Other Default Ignorable Code Point (ODI) ✘
Other Grapheme Extend (OGr_Ext) ✘
Other ID Continue (OIDC) ✘
Other ID Start (OIDS) ✘
Other Lowercase (OLower) ✘
Other Math (OMath) ✘
Other Uppercase (OUpper) ✘
Pattern Syntax (Pat_Syn) ✘
Pattern White Space (Pat_WS) ✘
Quotation Mark (QMark) ✘
Radical (Radical) ✘
Sentence Break (SB) Other
Simple Case Folding (scf) 𝄸
Script Extension (scx) Common
Soft Dotted (SD) ✘
STerm (STerm) ✘
Terminal Punctuation (Term) ✘
Unified Ideograph (UIdeo) ✘
Variation Selector (VS) ✘
Word Break (WB) Other
White Space (WSpace) ✘
XID Continue (XIDC) ✘
XID Start (XIDS) ✘
Expands On NFC (XO_NFC) ✘
Expands On NFD (XO_NFD) ✘
Expands On NFKC (XO_NFKC) ✘
Expands On NFKD (XO_NFKD) ✘