cleaned up the mess in Molly Malone and added chords

notes/MollyMalone.ly

@@ -5,57 +5,36 @@
   composer = "Traditional"
 }
 
-\relative g'
-{
-  \time 3/4
-  \key c \major
-  \partial 4 g | 
-  c c c | 
-  c8 e4. d8 c | 
-  d4 d d | 
-  d8 f4. e8 d | 
-  g4 e c |
-  g' e c | 
-  a d c | 
-  b2 g4 | 
-  c c c | 
-  c8 e4. d8 c | 
-  d4 d d |
-  d8 f4. e8 d | 
-  g e4. c4 | 
-  g'8 e4. c4 | 
-  d4. c8 d4 | 
-  c2 g4 | 
-  c4. c8 c4 |
-  c( e) d8( c) | 
-  d4. d8 d4 | 
-  d( f) e8 d | 
-  g e4. c4 | 
-  g'8 e4. c4 | 
-  d4. c8 d4 | 
-  c2  g4 | 
-  c c c | 
-  c8 e4. d8 c | 
-  d4 d d | 
-  d8 f4. e8 d | 
-  g4 e c |
-  g' e c | 
-  a d c | 
-  b2 g4 |
-  c c c | 
-  c8 e4. d8 c | 
-  d4 d d |
-  d8 f4. e8 d | 
-  g e4. c4 | 
-  g'8 e4. c4 |
-  d4. c8 d4 | 
-  c2 g4 | 
-  c4. c8 c4 |
-  c( e) d8( c) | 
-  d4. d8 d4 | 
-  d( f) e8 d | 
-  g e4. c4 | 
-  g'8 e4. c4 | 
-  d4. c8 d4 | 
-  c2 \bar "|."
-}
+<<  
+  \chords {s4 c1*6/4 g c g g1*3/4 c}
+  \relative g'
+  {
+    \time 3/4
+    \key g \major
+    \partial 4 d4 |
+    \repeat volta 3 
+    {
+      g g g |
+      g8 b4. a8 g |
+      a4 a a |
+      a8 c4. b8 a |
+      d4 b g |
+      d' b g |      
+    }
+    \alternative 
+    {
+      {
+        \set Score.repeatCommands = #'((volta "1") end-repeat)        
+        e c' b |
+        a2 d,4 |
+      }
+      { 
+        \set Score.repeatCommands = #'((volta "2-3") end-repeat)        
+        a'4. g8 a4 |
+        g2 d4 |
+      }      
+    }   
+    
+    \bar "|."
+  }
+>>