#(ly:set-option 'old-relative)
-\version "2.3.22"
+\version "2.4.0"
%{
Header for Petites Preludes.
\score{
% Allegretto
\context PianoStaff <<
- \context Staff = upper <<
+ \context Staff = "upper" <<
\global
- \context Voice = i\one
- \context Voice = ii \two
+ \context Voice = "i"\one
+ \context Voice = "ii" \two
>>
- \context Staff = lower <<
+ \context Staff = "lower" <<
\global
\clef "bass"
- \context Voice= iii \three
- \context Voice = iv \four
+ \context Voice = "iii" \three
+ \context Voice = "iv" \four
>>
>>
\layout{