- | TRANSPOSITION pitch {
- Pitch middle_c;
- Pitch sounds_as_c = pitch_interval (*unsmob_pitch ($2), middle_c);
- $$ = MAKE_SYNTAX ("property-operation", @$, SCM_BOOL_F, ly_symbol2scm ("Staff"), ly_symbol2scm ("PropertySet"), ly_symbol2scm ("instrumentTransposition"), sounds_as_c.smobbed_copy ());
- }