Index: parse.py
==================================================================
--- parse.py
+++ parse.py
@@ -156,15 +156,15 @@
             p[0].duration = p[2]
 
     def node(p):
         '''node: NODE
         '''
-        p[0] = tree.tree(node.strip("(").strip(")"))
+        p[0] = tree.Tree(node.strip("(").strip(")"))
 
 
     def p_error(p):
         raise Exception("Syntax error at '%s' of element type %s" % (p.value, p.type))
         
     yacc.yacc()
 
     #print yacc.parse("GFG B'AB,, | g/2fg gab | GFG BAB | d2A AFD")
     return yacc.parse(score)

Index: tree.py
==================================================================
--- tree.py
+++ tree.py
@@ -1,10 +1,11 @@
 import pdb
 
 class Tree():
-    def __init__(self):
+    def __init__(self, name):
         self.nodes = []
+        self.name = name
 
     def traverse_depth_first(self):
         all_nodes = []
         for node in self.nodes:
             if isinstance(node, Node):