Index: cfg.py
==================================================================
--- cfg.py
+++ cfg.py
@@ -13,59 +13,84 @@
 random.seed(time.time())
 
 def main():
     composition = {
         "verse1": {
-            "melody": {  # Instrument 'melody'
-                "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
-                "octave": 8,
-                "duration": 10,
-                "grammars": {  # Notes for this instrument to use in this piece
-                    "u": ["C G/2 G/2 G/2 C B, F' C F C B F (w)"],
-                    "w": ["E/4 A/4 D/4 G/4 F/4 F/4 B2 (u)"],
+            "intro": {
+                "melody": {  # Instrument 'melody'
+                    "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
+                    "octave": 8,
+                    "duration": 10,
+                    "grammars": {  # Notes for this instrument to use in this piece
+                        "u": ["G/2 G/2 G/4 G/4 A/4 A/4 A/2 G G A A A3 (w)"],
+                        "w": ["E E F F G/2 G/2 G3 (u)"],
+                    },
+                },
+            },
+            "body": {
+                "melody": {  # Instrument 'melody'
+                    "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
+                    "octave": 8,
+                    "duration": 10,
+                    "grammars": {  # Notes for this instrument to use in this piece
+                        "u": ["C G/2 G/2 G/2 C B, F' C F C B F (w)"],
+                        "w": ["E/4 A/4 D/4 G/4 F/4 F/4 B2 (u)"],
+                    },
                 },
             },
         },
         "verse2": {
-            "melody": {  # Instrument 'melody'
-                "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
-                "octave": 8,
-                "duration": 10,
-                "grammars": {  # Notes for this instrument to use in this piece
-                    "u": ["C C C C F/2 F/2 F/2 (u)", "D D G/2 A/2 D D (u)"],
-                },
-            },
-            "harmony": {  # Instrument 'melody'
-                "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
-                "octave": 8,
-                "duration": 10,
-                "grammars": {  # Notes for this instrument to use in this piece
-                    "u": ["C C C C F/2 F/2 F/2 (u)", "D D G/2 A/2 D D (u)"],
+            "body": {
+                "melody": {  # Instrument 'melody'
+                    "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
+                    "octave": 8,
+                    "duration": 10,
+                    "grammars": {  # Notes for this instrument to use in this piece
+                        "u": ["C C C C F/2 F/2 F/2 (u)", "D D G/2 A/2 D D (u)"],
+                    },
+                },
+                "harmony": {  # Instrument 'melody'
+                    "score_line": "i2 %(time)f %(duration)f 7000 %(octave)d.%(note)s 2",
+                    "octave": 8,
+                    "duration": 10,
+                    "grammars": {  # Notes for this instrument to use in this piece
+                        "u": ["C C C C F/2 F/2 F/2 (u)", "D D G/2 A/2 D D (u)"],
+                    },
                 },
             },
         },
     }
     print '''f1 0 512 10 1
 f2 0 8192 10 .24 .64 .88 .76 .06 .5 .34 .08
 f3 0 1025 10 1
-t 0 60
+t 0 100
     '''
 
     section_start = 0
     for section in ["verse1", "verse2"]:
+        print "; Section " + section
+        subsection_start = section_start
         section = composition[section]
-#        for subsection in section
-        instrs = []
-        for instr in section.values():
-            sync = None
-            max_time = instr["duration"]
-            instr_score = render_instr(instr, sync, max_time)
-            instrs.append(instr_score)
-            for line in generate_csound_score(instr_score, instr["score_line"], section_start):
-                print line
-        longest_score = max(instrs, key=lambda i: score_len(i))
-        section_start += score_len(longest_score)
+        for subsection in ["intro", "body", "outro"]:
+            try:
+                print "; Subsection " + subsection
+                subsection = section[subsection]
+                instrs = []
+                for instr in subsection:
+                    print ";Instrument " + instr
+                    instr = subsection[instr]
+                    sync = None
+                    max_time = instr["duration"]
+                    instr_score = render_instr(instr, sync, max_time)
+                    instrs.append(instr_score)
+                    for line in generate_csound_score(instr_score, instr["score_line"], subsection_start):
+                        print line
+                longest_score = max(instrs, key=lambda i: score_len(i))
+                subsection_start += score_len(longest_score)
+                section_start += score_len(longest_score)
+            except KeyError:
+                pass
         
 
 
 def render_instr(instr, sync, max_time):
     grammars = instr["grammars"]
@@ -100,11 +125,11 @@
         if score_len(grammars[node][g]) <= time_remaining:
             options.append(grammars[node][g])
     if len(options) == 0:
         raise ValueError("No available grammars that will fit in the score")
     if sync:
-        
+        pass
     else:
         phrase = random.choice(options)
     score = score[:node_index-1] + phrase + score[node_index+1:]
     return score
 

Index: test.sco
==================================================================
--- test.sco
+++ test.sco
@@ -1,34 +1,45 @@
 f1 0 512 10 1
 f2 0 8192 10 .24 .64 .88 .76 .06 .5 .34 .08
 f3 0 1025 10 1
-t 0 60
-    
-i2 0.000000 0.250000 7000 8.04 2
-i2 0.250000 0.250000 7000 8.09 2
-i2 0.500000 0.250000 7000 8.02 2
-i2 0.750000 0.250000 7000 8.07 2
-i2 1.000000 0.250000 7000 8.05 2
-i2 1.250000 0.250000 7000 8.05 2
-i2 1.500000 2.000000 7000 8.11 2
-i2 3.500000 1.000000 7000 8.02 2
-i2 4.500000 1.000000 7000 8.02 2
-i2 5.500000 0.500000 7000 8.07 2
-i2 6.000000 0.500000 7000 8.09 2
-i2 6.500000 1.000000 7000 8.02 2
-i2 7.500000 1.000000 7000 8.02 2
-i2 8.500000 1.000000 7000 8.02 2
-i2 9.500000 0.500000 7000 8.07 2
-i2 10.000000 0.500000 7000 8.09 2
-i2 10.500000 1.000000 7000 8.02 2
-i2 11.500000 1.000000 7000 8.02 2
-i2 3.500000 1.000000 7000 8.02 2
-i2 4.500000 1.000000 7000 8.02 2
-i2 5.500000 0.500000 7000 8.07 2
-i2 6.000000 0.500000 7000 8.09 2
-i2 6.500000 1.000000 7000 8.02 2
-i2 7.500000 1.000000 7000 8.02 2
-i2 8.500000 1.000000 7000 8.02 2
-i2 9.500000 0.500000 7000 8.07 2
-i2 10.000000 0.500000 7000 8.09 2
-i2 10.500000 1.000000 7000 8.02 2
-i2 11.500000 1.000000 7000 8.02 2
+t 0 100
+    
+; Section verse1
+; Subsection intro
+;Instrument melody
+i2 0.000000 1.000000 7000 8.04 2
+i2 1.000000 1.000000 7000 8.04 2
+i2 2.000000 1.000000 7000 8.05 2
+i2 3.000000 1.000000 7000 8.05 2
+i2 4.000000 0.500000 7000 8.07 2
+i2 4.500000 0.500000 7000 8.07 2
+i2 5.000000 3.000000 7000 8.07 2
+; Subsection body
+;Instrument melody
+i2 8.000000 0.250000 7000 8.04 2
+i2 8.250000 0.250000 7000 8.09 2
+i2 8.500000 0.250000 7000 8.02 2
+i2 8.750000 0.250000 7000 8.07 2
+i2 9.000000 0.250000 7000 8.05 2
+i2 9.250000 0.250000 7000 8.05 2
+i2 9.500000 2.000000 7000 8.11 2
+; Subsection outro
+; Section verse2
+; Subsection intro
+; Subsection body
+;Instrument melody
+i2 11.500000 1.000000 7000 8.00 2
+i2 12.500000 1.000000 7000 8.00 2
+i2 13.500000 1.000000 7000 8.00 2
+i2 14.500000 1.000000 7000 8.00 2
+i2 15.500000 0.500000 7000 8.05 2
+i2 16.000000 0.500000 7000 8.05 2
+i2 16.500000 0.500000 7000 8.05 2
+;Instrument harmony
+i2 11.500000 1.000000 7000 8.00 2
+i2 12.500000 1.000000 7000 8.00 2
+i2 13.500000 1.000000 7000 8.00 2
+i2 14.500000 1.000000 7000 8.00 2
+i2 15.500000 0.500000 7000 8.05 2
+i2 16.000000 0.500000 7000 8.05 2
+i2 16.500000 0.500000 7000 8.05 2
+; Subsection outro