diff --git a/bin/curvecalc b/bin/curvecalc
--- a/bin/curvecalc
+++ b/bin/curvecalc
@@ -35,6 +35,8 @@ from light9.curvecalc.subtermview import
 from light9.curvecalc.output import Output
 from light9.gtkpyconsole import togglePyConsole
 from light9.rdfdb.syncedgraph import SyncedGraph
+from light9.editchoicegtk import EditChoice
+from light9.observable import Observable
 
 class SubtermExists(ValueError):
     pass
@@ -59,7 +61,6 @@ class Main(object):
 
         mainwin.connect("delete-event", lambda *args: reactor.crash())
         def updateTitle():
-            # song will soon be a lookup on this curvecalc session
             mainwin.set_title("curvecalc - %s" %
                               graph.label(
                                   graph.value(session, L9['currentSong'])))
@@ -70,7 +71,16 @@ class Main(object):
         # but it's a minimum size, which i don't really want
         mainwin.set_size_request(1678, 922)
 
+        songChoice = Observable(None) # to be connected with the session song
 
+        def setSong():
+            songChoice(graph.value(session, L9['currentSong']))
+        graph.addHandler(setSong)
+        
+        ec = EditChoice(graph, songChoice, label="Editing song:")
+        wtree.get_object("currentSongEditChoice").add(ec)
+        ec.show()
+        
         wtree.get_object("subterms").connect("add", self.onSubtermChildAdded)
         graph.addHandler(self.add_subterms_for_song)
         self.refreshCurveView()