Success! Thank you for the fast response.
> Your \layout with
> \context { \Staff \RemoveEmptyStaves }
> works as expected, but you want to remove _DrumStaff_, add.
> \context { \DrumStaff \RemoveEmptyStaves }
>
I was thinking of a DrumStaff as a sub-type of staff.
As long as I think of Staff, DrumStaff, RhythmStaff, GrandStaff, etc as
separate objects, this makes sense.
>
> Your
> #(define perc '(
> (triangle default #f 2)
> (cymbals default #f 0)
> (tamtam default #f -2)
> ))
> redefines
> perc = {\drummode { tri4 cymc4 tt4 R2.} }
>
>
Yup. Too early in the morning!
GRB
