1 files changed, 33 insertions, 0 deletions
diff --git a/music/guitar.ly b/music/guitar.ly
new file mode 100644
index 0000000..76afb00
--- /dev/null
+++ b/music/guitar.ly
@@ -0,0 +1,33 @@
+
+pestanaPrivate = \markup {
+  \fontsize #-2
+  \combine 
+    \roman C 
+    \translate #'(0.6 . -0.4) \draw-line #'(0 . 2.0)  
+}
+
+pestanaSingle = 
+  #(define-music-function (fret-number music) (string? ly:music?)
+     #{
+       $music ^\markup { \pestanaPrivate \fontsize #-2 $fret-number }
+     #})
+
+pestanaSpan =
+  #(define-music-function (fret-number) (string?)
+     #{
+       \once \override TextSpanner.font-shape = #'upright
+       \once \override TextSpanner.style = #'solid
+       \once \override TextSpanner.bound-details.left.stencil-align-dir-y = #CENTER
+       \once \override TextSpanner.bound-details.right.text = \markup { \draw-line #'(0 . -.5) }
+       \once \override TextSpanner.bound-details.left.text = \markup { \pestanaPrivate \fontsize #-2 $fret-number }
+     #})  
+
+corda =
+  #(define-music-function (string-number) (string?)
+    #{
+      \once \override TextSpanner.style = #'solid
+      \once \override TextSpanner.font-size = #-5
+      \once \override TextSpanner.bound-details.left.stencil-align-dir-y = #CENTER
+      \once \override TextSpanner.bound-details.right.text = \markup { \draw-line #'( 0 . -.5) }
+      \once \override TextSpanner.bound-details.left.text = \markup { \circle \number $string-number }
+    #})