U+1D1CB "𝇋" Musical Symbol Tempus Imperfectum Cum Prolatione Imperfecta Unicode Character

U+1D1CB "𝇋" Musical Symbol Tempus Imperfectum Cum Prolatione Imperfecta is a historic notation from medieval and Renaissance mensural music theory, representing a specific rhythmic structure where tempus imperfectum indicates a duple division of the breve and prolatio imperfecta indicates a duple division of the semibreve, effectively describing a time signature of 4/4 in modern terms. This symbol visually consists of a semicircle resembling a "C" shape, which itself derives from the earlier notational evolution of the perfect circle being broken to signify imperfection. As part of the Musical Symbols Unicode block, it serves as a digital reference for scholars studying early music manuscripts and the complex system of mensuration signs used before the modern barline and meter conventions.

General Properties

Code Point	U+1D1CB
Version Added	3.1
Name	Musical Symbol Tempus Imperfectum Cum Prolatione Imperfecta
Block	Musical Symbols
General Category	Other Symbol
Canonical Combining Class	Not Reordered
Bidirectional Class	Left To Right

Encodings

HTML Decimal Encoding	𝇋
HTML Hex Encoding	𝇋
UTF-8 Encoding	0xF0 0x9D 0x87 0x8B
UTF-16 Encoding	0xD834 0xDDCB
UTF-32 Encoding	0x0001D1CB
C/C++/Java Escape	\ud834\uddcb

Unicode Properties

NFC Quick Check	Yes
NFD Quick Check	Yes
NFKC Quick Check	Yes
NFKD Quick Check	Yes
Numeric Type	None
Numeric Value	NaN
Line Break	Alphabetic
Script	Common
Script Extensions	Common
Indic Syllabic Category	Other
Vertical Orientation	Upright
Grapheme Base	Yes
Grapheme Cluster Break	Other
Word Break	Other
Sentence Break	Other