Change staff changes pitch notation

[Gerard L . Maters]

% When changing staff the relative pitch notation is changed into
% absolute notation


\version 2.18.0





% this is not correct:

\relative c'' \tuplet 5/4 {e32 g e d c} \change Staff = "down" {a g e c}

% this is correct:

\relative c'' \tuplet 5/4 {e32 g e d c} \change Staff = "down"  \relative c'' 
{a g e c}