capoTranspose eingebaut

basic_format_and_style_settings.ly

@@ -225,9 +225,9 @@ cue =
   #{
       \tag #'cues {
         \tweak self-alignment-X #LEFT
-        \mark 
+        \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))
       }
-  #})
+  #})

chord_settings.ly

@@ -68,6 +68,18 @@ altChord =
       #mainchord
     #}))
 
+% Akkorde werden so transponiert, dass sie passen, wenn man mit Kapo im angegebenen Bund spielt
+capoTranspose =
+#(define-music-function (fret chords) (number? ly:music?)
+  (define semi->pitch
+    (make-semitone->pitch
+      (music-pitches
+        #{ h b a gis g fis f e es d cis c #})))
+  (transpose
+    (ly:pitch-transpose (semi->pitch fret) (ly:make-pitch 0 0))
+    (ly:make-pitch 0 0)
+    chords))
+
 % kleine Mollakkorde und Alteration ausgeschrieben
 #(define (note-name->german-markup-nosym pitch lowercase?)
    (define (pitch-alteration-semitones pitch) (inexact->exact (round (* (ly:pitch-alteration pitch) 2))))