Triangle-Round Black Notehead

It names a notehead shape, not a complete musical note.

On a staff, the head’s position tells you pitch; its shape can identify a singing syllable in shape-note systems. Stems and flags add information about note length, and this standalone character has none of that surrounding structure.

Shape-note singing grew in American singing schools in the early nineteenth century. The first documented four-shape system appears in The Easy Instructor, a singing-school book from 1801, using fa, sol, la, and mi. Christian Minstrel, Jesse B. Aikin’s seven-shape singing-school book from 1846, added do, re, and ti. In that system, this shape-note ti notehead marks ti, also called si, the seventh singing syllable. Funk and Walker systems assigned that syllable other shapes.

What does 𝅕 mean if someone sends it?

It points to specialist music notation; ask which system the sender means.

A score supplies staff position and surrounding symbols; the standalone character does not tell you pitch or duration.

Name the tradition before assigning a singing syllable: 𝅕 can mark ti or si in Aikin-style notation, while Funk and Walker use other shapes for that syllable.

Why might 𝅕 look different in a score?

A music font may draw a separate glyph for shape-note scores.

SMuFL (Standard Music Font Layout), a standard for music fonts, lists 𝅕 as a general triangle-round notehead and  as a separate shape-note glyph. A notation program may use the font-specific form in a score; it is not the same Unicode character.

If 𝅕 appears as a box, blank, or generic triangle, the active font may lack its glyph or draw it differently.