Thanks, Daniel!
Just to clarify, it’s not my nomenclature. ‘Splayed stems’ is Finale’s term for this kind of notation, while ‘pronged stems’ is used by Elaine Gould in her book. The term ‘altered unisons’ would likely also cover tightly spaced situation were the notes are placed directly opposite each other, with a single vertical stem in the middle, which could explain the need for a more specific term.
Anyway, reading through the metadata documentation in SMuFL, in the section GlyphsWithAnchors (page 32) it seems yet another term for this, ‘split stems’, is used to describe this particular kind of notation. For some reason I've overlooked SMuFL’s inclusion of these specific anchor points until now, and with this new information in mind, I totally get why you don’t see the need for splayed-stem glyphs in the SMuFL standard. I wholeheartedly agree that scoring applications ideally should support this kind of notation with the use of primitives, and the SMuFL metadata clearly makes such support much easier to implement.
My newly acquired knowledge leads me to another question, however: Are the anchor points in the ‘splitStem’ category supposed to be set with any particular stem angle in mind? I find that the angle of the stem greatly affects the ideal coordinates for the anchor point.
Kind regards,
Knut Nergaard
Knut wrote:
Here’s an example of how splayed stems should look.
Right, thank you. I know these as "altered unisons"; apologies for not
immediately picking them up based on your nomenclature
As I mentioned before, we decided to keep the repertoire of stem glyphs in
SMuFL to a minimum because in general lines of a fixed length (or, in the
case of altered unison, angle) are not much use, especially since scoring
applications will typically handle stems by drawing primitives (lines or
rectangles). So at present I have no plans to include these in the SMuFL
standard.
Daniel
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