I think the use of \context is getting the vertical spacing engine confused. I _think_ my attached version of your music does what you want - it would seem to point in the right direction, at the very least.

--
Phil Holmes


----- Original Message ----- From: "Mojca Miklavec" <mojca.miklavec.li...@gmail.com>
To: "lilypond-user" <lilypond-user@gnu.org>
Sent: Wednesday, November 30, 2016 1:22 PM
Subject: Re: Vertically overlapping material / too small vertical space


Hi,

I'm also attaching a "quasi-minimal" example (if a full page may even
be called "minimal").

Mojca

(please CC me)

On 30 November 2016 at 12:06, Mojca Miklavec wrote:
Hi,

I would like to ask for a bit of a guidance. I sometimes end up with
the scores as you see in the attachment. There's simply not enough
vertical space between staves and text is overlapping very badly.

I can attach the complete example (or perhaps come up with some
"\repeat unfold ..." trick to compose a full page that more or less
reproduces the problem), but it's basically the same type of scores as
I used anywhere else in
    https://github.com/mojca/frajtonarca/tree/master/tablature/avtorske

On the example in the screenshot you see the following elements in one stave:

- button names are two lines of Lyrics attached on top of the melody
- Voice with the main melody
- accordion push spanner
- RhythmicStaff
- FiguredBass

I didn't even try to touch the spacing inside the scores. The only
part where the code is messing up with vertical spacing is here:

https://github.com/mojca/frajtonarca/blob/master/tablature/accordion.ily
in accordionPushSpannerEngraver (written by David Nalesnik) which is
something that I don't fully understand myself. But in theory it
should not affect distances between different staves, it should only
control the distance between main melody, push spanner event and the
basses.

I was looking at
- http://lilypond.org/doc/v2.19/Documentation/learning/vertical-spacing
- http://lilypond.org/doc/v2.19/Documentation/notation/flexible-vertical-spacing-paper-variables

etc. and found some ugly workarounds to fix the problem (I can create
a manual page break; add artificial invisible marks; increase the
spacing between staves – which will result in too big space even when
I don't have any button names / lyrics above the melody and that looks
ugly; ...), but I wonder if this issue with vertical spacing is:

(a) a bug in lilypond
(b) a bug in the code that handles accordion push events
(c) something that's super difficult to fix anywhere and I should be
using workarounds anyway

I can provide more information if needed, but I'll need a bit more guidance.

Thank you,
    Mojca



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\version "2.19.30"
\language "deutsch"

#(set-default-paper-size "a4")
\paper  {
  top-margin = 1.8\cm
}
\layout {
  indent = #0
  ragged-last = ##t
}

\header{
  title    = "Title"
  poet     = ""
  composer = "composer"
  arranger = "arranger"
}

buttonsIV = \lyricsto "melody" {}
buttonsIII = \lyricsto "melody" { \repeat unfold 40 { \skip 1 } "B3" }
buttonsII = \lyricsto "melody" {
  \repeat unfold 150 { "2" }
}
buttonsI = \lyricsto "melody" {
  \repeat unfold 150 { "1" }
}

\score {
\new PianoStaff <<
  \new Staff = "MelStaff" {
    \new Voice  = "melody" {
      \time 3/4
      \repeat unfold 75 { c'4 c'2 }
    }
  }

    \new Lyrics = "buttonsI" \with { alignAboveContext = "MelStaff" } { \buttonsI }
    \new Lyrics = "buttonsII" \with { alignAboveContext = "MelStaff" } { \buttonsII }

    \new Lyrics = "lyricsI" {
      \lyricsto "melody" {
        \repeat unfold 100 { I }
      }
    }
    \new Lyrics = "lyricsII" {
      \lyricsto "melody" {
        \repeat unfold 100 { II }
      }
    }

    \new Lyrics = "buttonsIV"  { \buttonsIV }
    \new Lyrics = "buttonsIII" { \buttonsIII }

  \new RhythmicStaff {
    \repeat unfold 150 { c,4 }
  }
  \new FiguredBass {
    \figuremode {
      \repeat unfold 150 { <4>4 }
    }
  }
>>
}

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