-onestaff = \type Staff = foo\melodic {
+\version "1.0.3";
+
+onestaff = \type Staff = foo\notes {
\property Staff.instr = instr
\property Staff.instrument = instrument \mark "B"; c1 \mark "A"; \break c2 c2 \break }
-grstaff = \melodic \type GrandStaff <
+grstaff = \notes \type GrandStaff <
\type Staff = bar {
\property Staff.instr = instr