Alternativchords mit Klammern

chord_settings.ly

@@ -38,6 +38,32 @@ shiftChords = #(define-music-function (parser location xshift chords) (number? l
 	$chords
 #})
 
+altChord = #(define-music-function (parser location mainchord altchord) (ly:music? ly:music?)
+(define (chord-namer in-pitches bass inversion context)
+#{
+  \markup {
+    \translate #'(-0.5 . 0)
+    \score {
+      \chords { #mainchord \klamm #altchord }
+      \layout {
+        \LAYOUT
+        \context {
+          \ChordNames
+          \override ChordName.extra-spacing-width = #'(0 . 0.3)
+        }
+        \context {
+          \Score
+          \override SpacingSpanner.spacing-increment = 0
+        }
+      }
+    }
+  }
+#})
+#{
+  \once \set chordNameFunction = #chord-namer
+	#mainchord
+#})
+
 % 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))))

footer_with_songinfo.ly

@@ -104,7 +104,10 @@
             )
         (if (and (equal? poetIds composerIds) (null? translatorIds) (null? versePoetData) (null? verseComposerData) (null? voiceComposerData) (null? compositionIds) (null? bridgeIds) (null? interludeIds))
           (list
-            (render-contribution-group (ly:output-def-lookup layout 'poetAndComposerEqualPrefix) poetIds)
+            (join-present (list
+              (render-contribution-group (ly:output-def-lookup layout 'poetAndComposerEqualPrefix) poetIds)
+              (if (equal? year_text year_melody) year_text (join-present (list year_text year_melody) "/"))
+            ) ", ")
             #f)
           (list
             (if (and (null? poetIds) (null? versePoetData) (null? translatorIds)) #f

toc_include.ly

@@ -167,11 +167,11 @@
                (reverse (map (lambda (m)
                                (make-size-box-to-box-markup #f #t m target-size-markup))
                           (cons
-                           (make-fill-with-pattern-markup 1 RIGHT "." (car revlist) page)
+                           (make-with-link-symbol-ref-markup 'index:label (make-fill-with-pattern-markup 1 RIGHT "." (car revlist) page))
                            (cdr revlist)))))))))
 
 \paper {
-  indexItemMarkup = \markup \with-link-symbol-ref #'index:label {
+  indexItemMarkup = \markup {
     \index-item-with-pattern
   }
   indexSectionMarkup = \markup \override #'(baseline-skip . 1.5) \left-column {

verses_with_chords.ly

@@ -276,6 +276,7 @@
             \context {
               \ChordNames
               \override VerticalAxisGroup.staff-affinity = ##f
+              \override ChordName.extra-spacing-width = #'(-0.1 . 0.1)
             }
             \context {
               \Score
@@ -313,8 +314,8 @@
               \NullVoice
               \consists Rest_engraver
               \omit Rest
-              \undo \omit NoteHead
-              \hide NoteHead
+             % \undo \omit NoteHead
+             % \hide NoteHead
             }
           }
         }