[smufl-discuss] Re: Private use area?

[dspreadbury]

Dave wrote:

> My drawing procedure actually creates three fonts for music items:
> ...
> The font section is thus schematically:
>
> if( cue item ) use cue font
> else if( chord symbol ) use chord font
> else use standard font

This merely reinforces my point: you already need to use three different
fonts. You have the freedom to encode your clef change glyphs in the
"private use area" to keep the number of fonts required to three, or you
can follow the SMuFL method and (shock! horror!) use four.

> To be brutally honest, I think the inclusion of all these variant clefs
is
> SMuFL is way over the top, especially considering that the simplest
> variation (clef changes are smaller than start-of-line clefs) is
omitted.

That would assume that clef changes comprise a "variation", which is
arguable (and I would argue is incorrect). We will have to continue to
agree to disagree on this point!

> Not really (and I say this from direct experience).    There are a few
> instances only:  notes vs grace notes; accidentals for each;  clefs;
tails
> for appoggiature and normal notes; numbers for time signatures and
tuplets.
> Compared even with your 62 optional clef forms, this is nothing!   And
small
> clefs are about the commonest.

Well, there are hundreds of noteheads and accidentals alone in SMuFL, so
the duplication required would be very substantial. Hundreds of extra
glyphs would be needed.

Anyway, I'm afraid I'm not going to change my mind on this point as there
is no more compelling argument made in favour of adding clef change glyphs
since the issue was first discussed nearly a year ago. I'm sorry that it
means you are left with something you feel is inelegant, but hopefully
there is at least some merit in the fact that SMuFL is sufficiently
open-ended that there are a variety of possible solutions (e.g. my
"complicated" stylistc alternates scheme for Bravura, your duplicated
glyphs scheme for Mozart's font, and undoubtedly others in the future as
well).

Daniel

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