Comment #2 on issue 2802 by [email protected]: NoteColumn interleaves
with KeySignature of other Staff
http://code.google.com/p/lilypond/issues/detail?id=2802
The workaround doesn't fix the problem, if RhythmicStaff is used.
A _very_ ugly hack would be to insert a TimeSignature, setting its 'stencil
to point-stencil
\version "2.16.0"
<<
\new RhythmicStaff {
% does not work with RhythmicStaff:
\override Staff . KeySignature #'transparent = ##t
\key ces \major
\repeat unfold 5 c''1
\break
\override Score.TimeSignature #'stencil = #point-stencil
\time 4/4
\repeat unfold 5 c''1
}
\new Staff {
\key ces \major
R1*10
}