Source: Noto Sans

U+02F9 Modifier Letter Begin High Tone

U+02F9 was added to Unicode in version 4.0 (2003). It belongs to the block U+02B0 to U+02FF Spacing Modifier Letters in the U+0000 to U+FFFF Basic Multilingual Plane.

This character is a Modifier 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 Other Neutral and is not mirrored. In text U+02F9 behaves as Alphabetic regarding line breaks. It has type Other for sentence and Alphabetic Letter for word breaks. The Grapheme Cluster Break is Any.

The Wikipedia has the following information about this codepoint:

The Uralic Phonetic Alphabet (UPA) or Finno-Ugric transcription system is a phonetic transcription or notational system used predominantly for the transcription and reconstruction of Uralic languages. It was first published in 1901 by Eemil Nestor Setälä, a Finnish linguist.
UPA differs from the International Phonetic Alphabet (IPA) notation in several ways.
The basic UPA characters are based on the Finnish alphabet where possible, with extensions taken from Cyrillic and Greek orthographies. Small-capital letters and some novel diacritics are also used.

Representations

System	Representation
Nº	761
UTF-8	CB B9
UTF-16	02 F9
UTF-32	00 00 02 F9
URL-Quoted	%CB%B9
HTML hex reference	˹
Wrong windows-1252 Mojibake	â—ŒË¹
AGL: Latin-5	uni02F9

Elsewhere

Complete Record

Property	Value
Age	4.0 (2003)
Unicode Name	MODIFIER LETTER BEGIN HIGH TONE
Unicode 1 Name	—
Block	Spacing Modifier Letters
General Category	Modifier Symbol
Script	Common
Bidirectional Category	Other Neutral
Combining Class	Not Reordered
Decomposition Type	None
Decomposition Mapping	Modifier Letter Begin High Tone
Lowercase	✘
Simple Lowercase Mapping	Modifier Letter Begin High Tone
Lowercase Mapping	Modifier Letter Begin High Tone
Uppercase	✘
Simple Uppercase Mapping	Modifier Letter Begin High Tone
Uppercase Mapping	Modifier Letter Begin High Tone
Simple Titlecase Mapping	Modifier Letter Begin High Tone
Titlecase Mapping	Modifier Letter Begin High Tone
Case Folding	Modifier Letter Begin High Tone
ASCII Hex Digit	✘
Alphabetic	✘
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	✘
Cased	✘
Full Composition Exclusion	✘
Default Ignorable Code Point	✘
Dash	✘
Deprecated	✘
Diacritic	✔
Emoji Modifier Base	✘
Emoji Component	✘
Emoji Modifier	✘
Emoji Presentation	✘
Emoji	✘
Extender	✘
Extended Pictographic	✘
FC NFKC Closure	Modifier Letter Begin High Tone
Grapheme Cluster Break	Any
Grapheme Base	✔
Grapheme Extend	✘
Grapheme Link	✘
Hex Digit	✘
Hyphen	✘
ID Continue	✘
ID Start	✘
IDS Binary Operator	✘
IDS Trinary Operator and	✘
Ideographic	✘
Indic Mantra Category	—
Indic Positional Category	NA
Indic Syllabic Category	Other
Jamo Short Name	—
Join Control	✘
Logical Order Exception	✘
Math	✘
Noncharacter Code Point	✘
NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Casefold	Modifier Letter Begin High Tone
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	✘
Radical	✘
Sentence Break	Other
Soft Dotted	✘
Sentence Terminal	✘
Terminal Punctuation	✘
Unified Ideograph	✘
Variation Selector	✘
Word Break	Alphabetic Letter
White Space	✘
XID Continue	✘
XID Start	✘
Expands On NFC	✘
Expands On NFD	✘
Expands On NFKC	✘
Expands On NFKD	✘
Bidi Paired Bracket	Modifier Letter Begin High Tone
Bidi Paired Bracket Type	None
East Asian Width	Neutral
Hangul Syllable Type	Not Applicable
ISO 10646 Comment	—
Joining Group	No_Joining_Group
Joining Type	Non Joining
Line Break	Alphabetic
Numeric Type	None
Numeric Value	not a number
Simple Case Folding	Modifier Letter Begin High Tone
Script Extension
Vertical Orientation	R