[smufl-discuss] Re: Private use area?

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[smufl-discuss] Re: Private use area?

David Webber-2
From: Grzegorz Rolek

> I don't want to open another can of worms, espacially that I'm no expert
in standard notation, but I have to ask: Isn't the clef change just a
presentational aspect of a regular clef, one that depends solely on
context? In other words, aren't there no other functional differences
between the two except they being scaled differently depending where
exactly they're placed in the score? Because as I understand things,
neither Unicode nor SMuFL don't encode characters in context, only the
characters themselves.<

Big clefs are drawn at the start each line, initialising the clef at the
start of the first line and as a reminder thereafter.
Small clefs are drawn when ever a clef changes on a staff.

Unicode encodes the characters C and c (S and s, etc)  at separate code
points.  The only difference is one of context in just about exactly the
same way.  The big ones go at the start of sentences (or indeed nouns in
German), and the small ones go elsewhere.   Their original context in
*fonts* is described by the fact that a font consisted of two containers
(cases) full of letters, one above the other.  The letters C and S were
found in the 'upper case' and the letters 'c and s' were found in the 'lower
case'.    My own feeling is that the context analogy is so close, that one
can essentially think of upper and lower case clefs, or, if you don't like
that, one is a clef and the other is a clef-change.

However Daniel has made the decision (not the way I'd have done it!) to
include clefs with 8's (etc) above and below as separate glyphs, thus
multiplying the number of clefs by far more than simply having large and
small versions of the three fundamental clefs.   If this mean he feels that
the small clefs would also have to appear with all those decorations, then I
can understand his reticence - but actually it's all the 8's and 15's which
cause the problem, not the existence of clefs and clef changes.

But I've got the message: if I want to use SMuFL fonts, then I'll have to
find a work-around, either via private use symbols, or by more frequent and
extensive font-switching.

Dave

David Webber
Mozart Music Software
http://www.mozart.co.uk/ 


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