As you can see in the following code and the attached image, there is
a possible bug when using \RemoveEmptyStaves with voices in different
keys (such as in a score with transposing instruments): key signatures
appearing only in hidden empty staves are still causing space in the
shown staves.
\version "2.19.13"
<<
\new Staff <<
{
c''1 \break
c''2. \break
c''1
}
>>
\new Staff \with {
\RemoveEmptyStaves
} <<
{
\key d \major
R1 \break
\time 3/4 R2. \break
\key c \major
\time 4/4 R1
}
>>
>>
<<
\new Staff <<
{
c''1 \break
c''2. \break
c''1
}
>>
\new Staff <<
{
\key d \major
R1 \break
\time 3/4 R2. \break
\key c \major
\time 4/4 R1
}
>>
>>
I don’t think this is as it should be. How can I correct this? And
should it be filed as a bug report, or is there some intention behind
this appearance?