[smufl-discuss] Re: Glyph registration proposal

[dspreadbury]

Joe wrote:

> >> NOTES (U+E100–U+E11F)
> >>
> >> These should be vertically centered on the baseline. Currently only
> >> the breve and semibreve are centered.
> >
> > I had already added "duplicates" of the breve and semibreve notes into
the
> > Noteheads range, which are centered on the baseline (I had already
made
> > this change earlier in SMuFL 0.5's development, ditto for
accidentals),
> > and had left all of the notes in the Notes range sitting on the
baseline.
> > My justification for doing this was that precomposed notes would
> > presumably only be used for text-like purposes. However, since we all
seem
> > to be agreed that we need separate fonts for text-based applications
> > anyway, that justification is no longer valid.
>
> But perhaps your point is still valid. These code points seem
> designed for use in metronome markings and it seems desirable to
> have metronome marking glyphs ready and available in the non-textual
> font. I think you are right that precomposed notes are not going to
> be used except in a text-like setting, I simply wasn't thinking about
that.
>
> So perhaps the note glyphs should remain as they were, set up well
> for metronome markings (with the breve/semibreve made consistent).

Depending on how scoring applications implement the drawing of metronome
marks, it may not be practical to use glyphs from a font intended for use
with a scoring application anyway, because the metrics (especially the
line height) will generally be incompatible with the metrics of the text
font that is used to draw the rest of the metronome mark.

So I think it would be fine to leave the precomposed notes aligned like
all the other notes, in case any scoring applications really want to use
them to draw e.g. unbeamed notes on a staff (for e.g. a very basic scoring
application that doesn't provide control over things like stem length
etc.).

Daniel

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