U+1D135 Musical Symbol Cut Time

Die Wikipedia hat die folgende Information zu diesem Codepunkt:

Alla breve [alla ˈbrɛːve] – also known as cut time or cut common time – is a musical meter notated by the time signature symbol (a C with a vertical line through it), which is the equivalent of ²
₂. The term is Italian for "on the breve", originally meaning that the beat was counted on the breve.

Alla breve is a "simple-duple meter with a half-note pulse". The note denomination that represents one beat is the minim or half-note. There are two of these per bar, so that the time signature ²
₂ may be interpreted as "two minim beats per bar". Alternatively this is read as two beats per measure, where the half note gets the beat.

The name "common time" refers to ⁴
₄, which has four beats to the bar, each of a quarter note (or crotchet).