(define (dashed-slur thick on off l)
(ly:format "~l ~4f [ ~4f ~4f ] 0 draw_dashed_slur"
(let ((control-points (append (cddr l) (list (car l) (cadr l)))))
- (map number-pair->string4 control-points) " ")
+ (map number-pair->string4 control-points))
thick
on
off))