SMuFL Possible mislabeling of U+E56A / U+E56B (Turn / Inverted Turn)

Dear all,

I would like to report what appears to be a mislabeling in the SMuFL definitions of the symbols U+E56A and U+E56B (Turn and Inverted Turn).
According to the current SMuFL documentation:

  *   U+E56A is labeled “turn”
  *   U+E56B is labeled “inverted turn.”
However, in several authoritative historical and theoretical sources, the usage is consistently the opposite:
the symbol corresponding to U+E56A is described as an inverted turn, while the symbol corresponding to U+E56B is the normal turn.
For example, in A Dictionary of Music and Musicians (Wikisource edition at https://en.wikisource.org/wiki/A_Dictionary_of_Music_and_Musicians/Turn), the definition is explicit:
“When the order of the notes of a turn is reversed, so as to begin with the lower note instead of the upper, the turn is said to be inverted, and its sign is either placed on end thus [cid:image001.png@01DC5FA2.31BEC9C0]  or drawn down in the contrary direction to the ordinary sign, thus [cid:image002.png@01DC5FA2.31BEC9C0] .”
(Example: C. P. E. Bach, Sonata in B♭, Largo.)
This description corresponds to the symbol currently encoded as U+E56A, not U+E56B.
Other musicological references (and also practical notation manuals) confirm this usage.
Therefore, the SMuFL naming appears to have the two designations reversed.
Because the naming of glyphs in SMuFL is used by notation software and fonts, this inconsistency may lead to incorrect engraving or misinterpretation of ornaments, particularly in historical repertoire.
I would therefore kindly ask you to review this issue. From the available sources, it seems that the labels of U+E56A and U+E56B should be swapped, so that the symbols match their historically correct names (“turn” and “inverted turn”).
Thank you very much for considering this report.
Please let me know if further documentation or examples would be helpful.
Kind regards,
Matthias Leopold
Technical development
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