Home U+2600 to U+26FF Miscellaneous Symbols
Glyph for U+266F
Source: Noto Sans Math


U+266F was added to Unicode in version 1.1 (1993). It belongs to the block U+2600 to U+26FF Miscellaneous Symbols in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Math Symbol and is commonly used, that is, in no specific script. The character is also known as z notation infix bag count.

The glyph is not a composition. It has a Ambiguous East Asian Width. In bidirectional context it acts as Other Neutral and is not mirrored. In text U+266F behaves as Ambiguous (Alphabetic or Ideographic) regarding line breaks. It has type Other for sentence and Other for word breaks. The Grapheme Cluster Break is Any.

The CLDR project labels this character “sharp” for use in screen reading software. It assigns additional tags, e.g. for search in emoji pickers: dièse, diesis, music, note, sharp.

The Wikipedia has the following information about this codepoint:

In music, sharp, dièse (from French), or diesis (from Greek) means, "higher in pitch". More specifically, in musical notation, sharp means "higher in pitch by one semitone (half step)". Sharp is the opposite of flat, which is a lowering of pitch.

A sharp symbol, ♯, is used in key signatures or as an accidental. For instance, the music below has a key signature with three sharps (indicating either A major or F♯ minor, the relative minor) and the note, A♯, has a sharp accidental.

Under twelve-tone equal temperament, B♯, for instance, sounds the same as, or is enharmonically equivalent to, C natural (C♮), and E♯ is enharmonically equivalent to F♮. In other tuning systems, such enharmonic equivalences in general do not exist. To allow extended just intonation, composer Ben Johnston uses a sharp to indicate a note is raised 70.6 cents (ratio 25:24), or a flat to indicate a note is lowered 70.6 cents.

In intonation, sharp can also mean "slightly higher in pitch" (by some unspecified amount). If two simultaneous notes are slightly out-of-tune, the higher-pitched one (assuming the lower one is properly pitched) is "sharp" with respect to the other. Furthermore, the verb sharpen means to raise the pitch of a note, typically by a small musical interval.


System Representation
UTF-8 E2 99 AF
UTF-16 26 6F
UTF-32 00 00 26 6F
URL-Quoted %E2%99%AF
HTML-Escape ♯
Wrong windows-1252 Mojibake ♯
HTML-Escape ♯
alias z notation infix bag count
Encoding: JIS0208 (hex bytes) A2 F4
LATEX \sharp
Adobe Glyph List musicsharpsign
digraph MX


Complete Record

Property Value
Age 1.1 (1993)
Unicode 1 Name SHARP
Block Miscellaneous Symbols and Pictographs
General Category Math Symbol
Script Common
Bidirectional Category Other Neutral
Combining Class Not Reordered
Decomposition Type None
Decomposition Mapping Glyph for U+266F Music Sharp Sign
Simple Lowercase Mapping Glyph for U+266F Music Sharp Sign
Lowercase Mapping Glyph for U+266F Music Sharp Sign
Simple Uppercase Mapping Glyph for U+266F Music Sharp Sign
Uppercase Mapping Glyph for U+266F Music Sharp Sign
Simple Titlecase Mapping Glyph for U+266F Music Sharp Sign
Titlecase Mapping Glyph for U+266F Music Sharp Sign
Case Folding Glyph for U+266F Music Sharp Sign
ASCII Hex Digit
Bidi Control
Bidi Mirrored
Composition Exclusion
Case Ignorable
Changes When Casefolded
Changes When Casemapped
Changes When NFKC Casefolded
Changes When Lowercased
Changes When Titlecased
Changes When Uppercased
Full Composition Exclusion
Default Ignorable Code Point
Emoji Modifier Base
Emoji Component
Emoji Modifier
Emoji Presentation
Extended Pictographic
FC NFKC Closure Glyph for U+266F Music Sharp Sign
Grapheme Cluster Break Any
Grapheme Base
Grapheme Extend
Grapheme Link
Hex Digit
ID Continue
ID Start
IDS Binary Operator
IDS Trinary Operator and
Indic Mantra Category
Indic Positional Category NA
Indic Syllabic Category Other
Jamo Short Name
Join Control
Logical Order Exception
Noncharacter Code Point
NFC Quick Check Yes
NFD Quick Check Yes
NFKC Casefold Glyph for U+266F Music Sharp Sign
NFKC Quick Check Yes
NFKD Quick Check Yes
Other Alphabetic
Other Default Ignorable Code Point
Other Grapheme Extend
Other ID Continue
Other ID Start
Other Lowercase
Other Math
Other Uppercase
Prepended Concatenation Mark
Pattern Syntax
Pattern White Space
Quotation Mark
Regional Indicator
Sentence Break Other
Soft Dotted
Sentence Terminal
Terminal Punctuation
Unified Ideograph
Variation Selector
Word Break Other
White Space
XID Continue
XID Start
Expands On NFC
Expands On NFD
Expands On NFKC
Expands On NFKD
Bidi Paired Bracket Glyph for U+266F Music Sharp Sign
Bidi Paired Bracket Type None
East Asian Width Ambiguous
Hangul Syllable Type Not Applicable
ISO 10646 Comment
Joining Group No_Joining_Group
Joining Type Non Joining
Line Break Ambiguous (Alphabetic or Ideographic)
Numeric Type None
Numeric Value not a number
Simple Case Folding Glyph for U+266F Music Sharp Sign
Script Extension
Vertical Orientation U