Re: print bass staff not always

[Andrew Bernard]

Hi Gianmaria,

I know you can do this with GrandStaff and the score context settings shown here.

Not sure how to do it with PianoStaff.

Andrew

%====

\version "2.19.82"
rh = { \clef treble \repeat unfold 3 {a1 b1 c'1 d'1 \break}}
lh = { \clef bass s1*4 a1 1 1 1}
\score
{
  \new GrandStaff <<
    \new Staff \rh
    \new Staff \lh
  >>
  \layout {

    \context {
      \Score
      \RemoveEmptyStaves
      \override VerticalAxisGroup.remove-first = ##t
    }
  }
}

%===

On Mon, 21 Jan 2019 at 21:13, Gianmaria Lari <address@hidden> wrote:

The following code prints three "lines" of music. The first and second lines are two staff system (treble and bass) and the third line just one staff (treble). 

\version "2.19.82"

rh = { \clef treble \repeat unfold 3 {a1 b1 c'1 d'1 \break}}

lh = { \clef bass s1*4 a1 1 11}

\score 

{ 

  \new PianoStaff <<

    \new Staff \rh

    \new Staff \lh

  >>

  \layout {}

}

I would like to avoid printing the first bass line because it's empty (s1*4). How can I do it?

Sorry for my "imprecise" english.

g.

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