Inhaltlich sinnvollere Aufteilung der include Skripte

eps_file_from_song_dir.ly

@@ -0,0 +1,18 @@
+% songfilename auch im Markup verfügbar machen
+#(define-markup-list-command (setsongfilename layout props songfilename markuplist)
+  (string? markup-list?)
+  (interpret-markup-list layout (prepend-alist-chain 'songfilename songfilename props) markuplist))
+
+#(define-markup-command (customEps layout props ysize filename)(number? string?)
+   #:properties ((songfilename "")
+                 (defaultmarkup #f))
+   (interpret-markup layout props
+     (let ((filepath (if (string-null? songfilename)
+                          filename
+                          (ly:format "../../~a/~a/~a" songPath songfilename filename))))
+       (if (file-exists? filepath)
+             (make-epsfile-markup Y ysize filepath)
+             (if defaultmarkup
+                 defaultmarkup
+                 (ly:format "file does not exist ~a" filepath))
+))))