- \property GrandStaff.instrument = "Violini "
- \property Staff.instrument = " vn I" { c''4 }}
- \context Staff = bass { \property Staff.instrument = " vn II" c''4 }>
+ \set GrandStaff.instrument = "Violini "
+ \set Staff.instrument = " vn I" { c''4 }}
+ \context Staff = bass { \set Staff.instrument = " vn II" c''4 }>>