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Re: [Lilypond-auto] Issue 1278 in lilypond: Enhancement: arrow notation
Re: [Lilypond-auto] Issue 1278 in lilypond: Enhancement: arrow notation for quarter-tones
Sun, 14 Jul 2013 05:10:35 +0000
Comment #8 on issue 1278 by address@hidden: Enhancement: arrow
notation for quarter-tones
Well, it succeeds for B-flat-lowered Clarinet, and fails for B-half-flat
Clarinet in a very friendly way:
warning: Could not find glyph-name for alteration 3/5
And the snippet has a very friendly comment showing the resolution
% Transposition could generate pitches with alterations
% double-sharp-lower (8/10) or double-flat-raise (-8/10)
% but there are no such symbols in the font, so we substituted
% the most appropriate symbols.
% If some pitch in your score has no symbol, LilyPond gives a warning.
Fundamentally, if you want quarter-tone pitches to sometimes maintain a
"C-sharp-lower distinct from C-natural-raise"
but ignore other distinctions
"F-sharp-lower transposed by a sharp-lower would be
but just use F-sharp for that"
then you need a way to describe your notation system to LilyPond.
The current way to describe such a system is to make the pitches
numerically distinct, and tell LilyPond which glyphs to use for the
numerical pitches that could arise in practice.
Note that the patch in comment #1 stores a quarter sharp, transposed up by
a quarter tone, as 2/4, which is kept distinct from 1/2. In that system,
similarly, one needs to tell LilyPond whether 2/4 should be printed with a
sharp, or alternatively a user-defined double-up-arrow.
1278.png 53.7 KB
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