[smufl-discuss] Glyph registration and metrics

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[smufl-discuss] Glyph registration and metrics

Knut Nergaard
Hi Daniel!

I’ve come across some cases where the metrics and/or registration of glyphs in Bravura differs from the guidelines outlined in the SMuFL documentation, and some glyph types for which no clear guidelines have been outlined, but where the registration seems inconsistent.

To make sure all my glyphs are in fact correctly and consistently spaced and registered, I would greatly appreciate some clarification on the following specific cases:

Glyphs intended for placement on stems:
Some of these are centred on the baseline and some are sitting on the baseline. Is this deliberately, or should these glyphs ideally be registered one way or the other?

Sagittal accidentals:
These have different amounts of space on the right side, while all other accidentals have zero-width side bearings. Is there a specific reason for spacing the sagittal ranges differently from other accidentals?

Clusters:
The square and round cluster noteheads (E120–E123) as well as the precomposed 2nd and 3rd diamond clusters (E138–E13B) are sitting on the baseline contrary to the guidelines for registration of clusters. I know some of these glyphs are most often used for clusters of non specific pitch, but even so, I can’t think of a good reason why they should have a different registration.

Knut Nergaard