((or (pair? toplevel-scores) output-empty-score-list)
(let ((book (apply ly:make-book $defaultpaper
$defaultheader toplevel-scores)))
(set! toplevel-scores (list))
((or (pair? toplevel-scores) output-empty-score-list)
(let ((book (apply ly:make-book $defaultpaper
$defaultheader toplevel-scores)))
(set! toplevel-scores (list))