The treble clef, the top symbol you see in the photo above, is also known as the G-clef, which gives you the first clue to its origin. 12th century music notation showing neumes and a single-line ...

or whether it’s being amazed at some of the daft comments on the transcription.” When traditional notation can’t reflect the raw energy onscreen, Collier and his team, well, improvise.

It is essentially an extension of the Unicode standard that includes more Western music notation symbols. On SMuFL's GitHub page, it's described as a "specification that provides a standard way ...

So all notation symbols had to reside in a series of typefaces, all supplanting the ASCII range. The Unicode allowance for music symbols is tiny, and the SMuFLE reference font, Bravura ...