2 instrument names on grandstaffs. GR is centered on entire score
8 latexpackages = "amsmath";
13 \context Staff = sa {\property Staff.instrument = "A" g,2 c''''2}
14 \context Staff = sb {\property Staff.instrument = "B" g,2 c''''2}
15 \context GrandStaff=gs <
16 \property GrandStaff.instrument = "Gr"
17 \context Staff = ga {\property Staff.instrument = "" c''1 }
18 \context Staff = gb {\property Staff.instrument = "" c''1 }
20 \context Staff = sc {\property Staff.instrument = "foobar"
21 % "\small$\mathrm{\genfrac{}{}{0pt}{0}{C}{D}}$"
24 \context Staff = sd {\property Staff.instrument = "E" c''1 }
30 \consists "Instrument_name_engraver";
34 \consists "Instrument_name_engraver";