%{
(Message vers:9)
To: Adrian Mariano <adrian@cam.cornell.edu>
cc: gnu-music-discuss@gnu.org
Subject: Re: Switching from one staff to two staffs 
Reply-To: janneke@gnu.org
In-reply-to: Your message of "Tue, 19 Jan 1999 12:27:10 EST."
             <199901191727.MAA29757@avalanche.cam.cornell.edu> 
Date: Wed, 20 Jan 1999 09:39:22 +0100
From: Jan Nieuwenhuizen <jan@beavis-nt>

On Tuesday, 19 January 1999, Adrian Mariano writes:

> I want to typeset something which starts out with just one staff and then
> harmony comes in and there are two staffs.  I can't figure out how to do
> this.  I get an extra blank staff during the second section (using
> Lily 1.1.15):

There used to be an example called 'multi.ly'...
Try this (we'll include it in pl23/24):

extra-staff.ly:
%}

\score {
	<
		\context Staff=i \notes\relative c''{ c1 c c c c }
		\context StaffGroup=ii \notes\relative c''{ 
			\context Staff=ii
			c1 c
			< \context Staff=ii { c1 } \context Staff=iii { c1 } >
			c
		}
	>
  	\paper {
		linewidth = -1.;
		\translator{
			\ScoreContext

		}
	}
}


\version "1.2.0"; 
