X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Documentation%2Fsnippets%2Fnumbers-as-easy-note-heads.ly;h=4bdf474d57362ce91fd9335d3c109ce0afeb4f8e;hb=119e3affc66e887412f897f95f2f8cec292c2555;hp=7cd88fa11baabba886afe62b358ce847c124e5a5;hpb=d8b02eb476e895b98fd59f1c5d975221806181b1;p=lilypond.git

diff --git a/Documentation/snippets/numbers-as-easy-note-heads.ly b/Documentation/snippets/numbers-as-easy-note-heads.ly
index 7cd88fa11b..4bdf474d57 100644
--- a/Documentation/snippets/numbers-as-easy-note-heads.ly
+++ b/Documentation/snippets/numbers-as-easy-note-heads.ly
@@ -19,20 +19,22 @@ object it sees.
 } % begin verbatim
 
 
-#(define Ez_numbers_engraver (list
-  (cons 'acknowledgers
+#(define Ez_numbers_engraver
    (list
-     (cons 'note-head-interface
-       (lambda (engraver grob source-engraver)
-         (let* (
-           (context (ly:translator-context engraver))
-           (tonic-pitch (ly:context-property context 'tonic))
-           (tonic-name (ly:pitch-notename tonic-pitch))
-           (grob-pitch (ly:event-property (event-cause grob) 'pitch))
-           (grob-name (ly:pitch-notename grob-pitch))
-           (delta (modulo (- grob-name tonic-name) 7))
-           (note-names (make-vector 7 (number->string (+ 1 delta)))))
-        (ly:grob-set-property! grob 'note-names note-names))))))))
+    (cons 'acknowledgers
+          (list
+           (cons 'note-head-interface
+                 (lambda (engraver grob source-engraver)
+                   (let* ((context (ly:translator-context engraver))
+                          (tonic-pitch (ly:context-property context 'tonic))
+                          (tonic-name (ly:pitch-notename tonic-pitch))
+                          (grob-pitch
+                           (ly:event-property (event-cause grob) 'pitch))
+                          (grob-name (ly:pitch-notename grob-pitch))
+                          (delta (modulo (- grob-name tonic-name) 7))
+                          (note-names
+                           (make-vector 7 (number->string (1+ delta)))))
+                     (ly:grob-set-property! grob 'note-names note-names))))))))
 
 #(set-global-staff-size 26)