Re: Adding a staff in the middle of a piece

[Martin Frankland]

Thank you for your answer.

I tried your proposed solution (B). My previous version was indeed using new
names for the staffs, so Lilypond would have no way of knowing I wanted them
to match up (i.e. that \Sop should follow \SopIntro). I tried something like
this:

\score {
{
\ChoirIntro
<<
\Soli 
\context Staff = SopIntro \sop % sop contains all the soprano notes after
the intro
\context Staff = AltIntro \alt
\context Staff = TenIntro \ten
\context Staff = BasIntro \bas
>>
}
\layout{}
\midi{}
}

but it still didn't work. To simplify it further and test if sequential
parts work, I tried:

\score {
{
\ChoirIntro
\Soli 
}
\layout{}
\midi{}
}

but I got a similarly bad result: intro ok, followed by some kind of empty
system that doesn't have lines.

I moved on to proposed solution (A), or selective Frenching. I added the
line:

\override Staff.VerticalAxisGroup #'remove-empty = ##f
% Note: writing \set instead of \override produces a syntax error in my code

to all the staffs, from the beginning for the choir, and after the intro for
the soloists. Oddly enough, it works for the choir but not the soloists.
More precisely , tenors have a few bars of rests in the first verse and
their empty staff is displayed, whereas soloists have the usual Frenching
pattern, with all empty staffs hidden.

This reminded me of a question by Alexander Kobel:

http://www.nabble.com/Locally-disable-hiding-of-empty-staves--td19142114.html

with proposed solution of Neil Puttock:

http://lists.gnu.org/archive/html/lilypond-user/2007-08/msg00366.html

I tried Neil's commands \show and \hide, and they yield exactly the results
I was looking for, i.e. \show forces the empty staffs to appear.

I didn't play around too much with your proposed solution (C), since my
music code is somewhat complicated, with lots of lyrics, and I was happy
with the solution using \show.

Again, thank you very much for your input.

--
Martin Frankland



Mats Bengtsson-4 wrote:
> 
> Martin Frankland wrote:
>> I have the same problem. I have an SATB choir with female and male
>> soloists
>> on top. I'd like to start the soloists' staffs after the choral intro.
>> Everything I've tried so far hasn't worked:
>>
>>
>> 2. The Frenched score using \RemoveEmptyStaffContext doesn't work for me
>> since the male and female soloists alternate, so it displays only the one
>> singing and hides the other one. I want BOTH solo staffs displayed, the
>> one
>> with the notes AND the one with rests, otherwise it's hard to read. Can
>> we
>> tell Lilypond to hide whole *groups* of staffs that contain only rests?
>>
>    
> (A) This is probably the easiest approach. Just do
> \set Staff.VerticalAxisGroup #'remove-empty = ##f
> in the staves for the solo parts, after the introduction.
> Then, they will stay even if they only contain rests.
>> 3. I've tried writing the choral intro and the rest of the song as two
>> consecutive parts of the score, like this:
>>
>> \score {
>>  {
>>   \ChoirIntro
>>   << \Soli \Choir >>
>>  }
>>  \layout{}
>>  \midi{}
>> }
>>
>> but it doesn't work. The pdf displays the intro correctly followed by
>> some
>> kind of empty system.
>>   
> 
> (B) This solution should also work well, at least if you make sure
> to use named contexts so that the choir parts appear in the same
> Staff contexts both in the intro and in the main part of the score.
> The following small example illustrates the idea:
> \score{
> { \new Staff = soprano \relative c' { c d e f | g1 |  }
>   << \context Staff = soprano \relative c'' { g4 f e d | c1 | }
>      \new Staff = solo \relative c'' {g8 c g f e g e d | c1 | }
>   >>
> }
> }
> 
> 
> (C) Yet another alternative is to just introduce the additional staves
> at the point in the score where they should first appear:
> \score{
> { \new Staff = soprano \relative c' {
>     c4 d e f | g1 | 
>     << { g4 f e d | c1 | }
>      \new Staff = solo \relative c'' {g8 c g f e g e d | c1 | }
>     >>}
> }
> }
> 
> Note that it probably is a good idea to include a \break after the
> intro, regardless of which of the above strategies you use.
> 
>    /Mats
> 
> 

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