Am 24.04.2018 um 13:46 schrieb David Kastrup:
parser.yy is actually quite explicit here:
// We must not have lookahead tokens parsed in lyric mode. In order
// to save confusion, we take almost the same set as permitted with
// \lyricmode and/or \lyrics. However, music identifiers are also
// allowed, and they obviously do not require switching into lyrics
// mode for parsing.
lyric_mode_music:
{
parser->lexer_->push_lyric_state ();
} grouped_music_list
{
parser->lexer_->pop_state ();
$$ = $2;
}
| MUSIC_IDENTIFIER
;
It's not like LilyPond is overdocumented. When there is an explicit
comment, chances are that it's sort-of relevant.
I read that comment. But nevertheless I do not see how a music
function could disturb anything at that point.
Usage example attached ...
Knut
\version "2.21.0"
myscore = #(define-scheme-function () ()
(ly:parser-include-string #{
"\score {\music \addlyrics { \words } \layout {}}" #}))
% | |
% I'd like to get rid of those curly brackets
%
% At some places the lilypond gammar does not allow to
% use a MUSIC_FUNCTION instead of a MUSIC_IDENTIFIER or a
% grouped_music_list. The solution is to use "{ \name }"
% instead of "\name" in those cases.
% If you use
%
% name = some_music_or_lyrics
%
% name is given the meaning that some_music_or_lyrics has at
% the time of the definition.
%
% If you use
%
% \macro "name = some_music_or_lyrics"
%
% instead, name is defined to be a music function with the
% meaning of some_music_or_lyrics at the time of its usage.
macro = #(define-scheme-function (arg) (string?)
(let* (
(index (string-index arg #\=))
(left (string-take arg index))
(right (string-drop arg (+ 1 index))))
(ly:parser-include-string (string-append
left " = #(define-music-function () () #{ " right " #})" ))))
musA = \relative { c'4 e d f g2 }
musB = \relative { g'4 g a b c2 }
musC = \relative { g'4 g f d c2 }
musD = \relative { a'4 a a b c1 \bar "|." }
lyrA = \lyricmode { A B C D E }
lyrB = \lyricmode { F G H I J }
lyrC = \lyricmode { f g h i j }
lyrD = \lyricmode { V W X Y Z }
\macro "music = \musA \musB \musD"
\macro "words = \lyrA \lyrB \lyrD"
\myscore
musB = \musC
lyrB = \lyrC
\myscore
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