Re: 2.18 release notes

[Pavel Roskin]

Quoting James <address@hidden>:

> The original diff is here:
>
> https://codereview.appspot.com/11328043/diff/40001/Documentation/notation/vocal.itely
>
> This gives an example I suppose we could add to the changes doc.

Actually, there are several examples there.

> I don't really understand this function to be able to come up with
> something else, but if you do feel free to email it and we can add a
> patch to the changes.tely or something like that.

NullVoice is a voice that is not shown but that can accept lyrics.  I  
really like that I can reuse an existing melodic line for the lyrics  
and it won't conflict with any visible voice.

The documentation shows examples with \partcombine, but both of them  
use a separate aligner variable, which may be good for advanced stuff,  
but doesn't show how simple things become in the common case.

I suggest something like this:

A new context called NullVoice has been added.  It doesn't appear in  
the printed output, but it can be used to align lyrics.  It can be  
used with the partcombine function.

soprano = \relative c' {
  c e g c
}

alto = \relative c' {
  a c e g
}

verse = \lyricmode {
  This is my song
}

\score {
  \new Staff <<
    \partcombine \soprano \alto
    \new NullVoice = "aligner" \soprano
    \new Lyrics \lyricsto "aligner" \verse
  >>
  \layout {}
}

--
Regards,
Pavel Roskin