make cues configurable

basic_format_and_style_settings.ly

@@ -218,4 +218,16 @@ dottedExtender = {
 }
 
 melisOff = \set ignoreMelismata = ##t
-melisOn = \unset ignoreMelismata
+melisOn = \unset ignoreMelismata
+
+cue =
+#(define-music-function (zahlen) (number-list?)
+  #{
+      \tag #'cues {
+        \tweak self-alignment-X #LEFT
+        \mark 
+          #(make-on-the-fly-markup
+            (lambda (layout props m) (interpret-markup layout (prepend-alist-chain 'cues zahlen props) (ly:output-def-lookup layout 'cueMarkup)))
+            (make-null-markup))
+      }
+  #})