[Denemo-devel] Lyrics

[Nils Gey]

1) If you join two staffs, upper without lyrics, lower with lyrics, to one 
staff with 2 voices the lyrics disappear.

Before the joining the lower staff looks like this.

MvmntIVoiceII =  {
         f'4 e' d' c' \EndMovementBarline
}


MvmntIVoiceIILyricsVerseI = \lyricmode { 
Lo -- rem Ip -- sum 
}

MvmntIStaffII = \new Staff  << {
                \MvmntIVoiceIIContext
                }
                 \lyricsto VoiceIIMvmntI \new Lyrics \MvmntIVoiceIILyricsVerseI
                >>

score {
<< <<
\MvmntIStaffI
\MvmntIStaffII
>>
>>
[...]

After joining the lyrics are still defined but not used anywhere. Instead the 
staff now looks like this.

MvmntIStaffI = \new Staff  << {
                \MvmntIVoiceIContext
                }
                
\new Voice {
                \MvmntIVoiceII
                }
                >>


Solution: The staff which becomes the voice must keep the lyrics. There is a 
simper Lilypondsyntax available to add lyrics. The defining stays the same but 
insertion is done like this. The lyrics can be added right after the other 
items:

MvmntIStaffI = \new Staff  << {
                \MvmntIVoiceIContext
                }
                
\new Voice {
                \MvmntIVoiceII
                \addlyrics {\MvmntIVoiceIILyricsVerseI}
                }
                >>


2) I figured out how to manipulate the font, e.g. size, of the lyrics. Right 
now its possible to add a lilypond instruction like:
\override LyricText #'font-size = #-0.5
directly to Denemos lyrics pane. Obviously this conflicts with Denemos own 
lyrics-alignment. 
We need a lyrics directive which can insert text like this before and after the 
actual lyrics. Or is there another possible entry-point for directives other 
than the lyrics themselve?

3) Creating, accessing and modifying lyrics from Scheme would be a nice 
addition to Denemo. Spelling correction, creating tests and bug-report scripts, 
and even fun things like generating lyrics would become possible.


Nils