surviving-staff

[Erik Sandberg]

Hi,
I added this as surviving-staff to the repository. Thanks to Ferenc.
Erik

%
address@hidden
\header { texidoc =
"The upper staff is extended with an empty bar.

The score is weird in the sense that the Lyrics context is
created within a Staff context. But if this is not allowed, then
it should give either a warning or an error."
}
\version "2.2.1"

\score {
    <<
       \new Staff
        <<
            \context Voice = "choir"
            \notes {b2 r }
            \lyricsto "choir" \new Lyrics \lyrics { a }
        >>
        \new Staff \notes { r1 r r }
    >>
}