How can I go about using for-each in this example for the group function to accept an arbitrary number of parts ?
\version "2.25.7"
parts = #(list
#{ {c'} #}
#{ {d'} #}
#{ {e'} #}
#{ {f'} #} )
group =
#(define-music-function
(parts) (list?)
#{\new StaffGroup <<
%#(for-each (lambda (part) part) parts)
#(car parts)
#(car (cdr parts))
#(car (cdr (cdr parts)))
#(car (cdr (cdr (cdr parts))))
>>#})
\group \parts
--
*Pierre-Luc Gauthier*
