% essai de changement de portée

\version"2.12.3"
\pointAndClickOn

\new PianoStaff <<
\new Staff = "up" {
	\relative c'{
		  \stemUp
		b'4[ e] b8[ c] b[ a]
	  } 
}                
\new Staff = "down" {
\relative c {
		\clef bass     
	   r8 e8 g[ a] b[   
	   \change Staff = "up" 
	  \stemDown
	   e] c[ e] 
	   \change Staff ="down"
	   \clef bass
		} 
}
    >>
    
    \layout {}
    
   \relative c'' {
  a4 b c b

  a4 b c b

  a4 b c b
}