violinMusic = { \meterAndTempo \clef "treble" \key f \major \stub } celloMusic = { \meterAndTempo \clef "bass" \key f \major \stub } guitarMusic = { \meterAndTempo \clef "treble" \key f \major \stub } staffViolin = \new Staff \with { instrumentName = "Viool" shortInstrumentName = "Vln." midiInstrument = "Violin" } \violinMusic staffCello = \new Staff \with { instrumentName = "Cello" shortInstrumentName = "Vcl." midiInstrument = "Cello" } \celloMusic staffGuitar = \new Staff \with { instrumentName = "Gitaar" shortInstrumentName = "Gtr." midiInstrument = "Guitar" } \celloMusic staffgroupStrings = \new StaffGroup << \staffViolin \staffCello \staffGuitar >>