diff --git a/main.ck b/main.ck
index aa1fd15..4e6c749 100644
--- a/main.ck
+++ b/main.ck
@@ -8,29 +8,41 @@ g => Gain feedback => DelayL delay => g;
 1 => feedback.gain;
 1 => delay.gain;
 
-// Create our OSC receiver
-spork ~ inputEventHandler(9000);
-
-// Loop forever
-while(true) { 1::second => now; }
+// OSC listener class
+class OSCListener {
+    fun void run(int port, string address) {
+        OscRecv recv; port => recv.port; recv.listen(); 
+        recv.event(address) @=> OscEvent oe;
+        while (true) { oe => now; while (oe.nextMsg() != 0) { this.handle(oe); } }
+        me.yield();
+    }
+    fun void handle(OscEvent oe){};
+}
 
+// define child class Y
+class InputListener extends OSCListener {
+    fun void handle(OscEvent oe){
+        oe.getFloat() => g.gain;
+        oe.getFloat() => float a;
+    }
+}
 
-inputEventHandler => awd.handler;
-
-// Event loop to deal with ADC input
-fun void inputEventHandler(int port) {
-    OscRecv recv;
-    port => recv.port;
-    recv.listen();
-    recv.event( "/input, f f" ) @=> OscEvent oe;
-    while (true) {
-        oe => now;
-        while (oe.nextMsg() != 0) { 
-            oe.getFloat() => g.gain;
-            oe.getFloat() => float a;
-        }
+// define child class Y
+class DelayListener extends OSCListener
+{
+    fun void handle(OscEvent oe){
+        oe.getFloat()::second => delay.delay;
+        oe.getFloat() => feedback.gain;
     }
-    me.yield();
 }
 
+InputListener il;
+DelayListener dl;
+spork ~ il.run(9000, "/input, f, f");
+spork ~ dl.run(9000, "/delay, f, f");
+
+// Loop forever
+while(true) { 1::second => now; }
+
+
 
diff --git a/main.py b/main.py
index 1ed8fd6..f4c9842 100644
--- a/main.py
+++ b/main.py
@@ -57,6 +57,72 @@ class InputPanel(wx.Panel):
         except OSCClientError:
             pass
 
+class DelayPanel(wx.Panel):
+    ''' Handle the ADC input settings '''
+    def __init__(self, parent):
+        ''' Constructor '''
+        wx.Panel.__init__(self, parent)
+        sizer = wx.BoxSizer(wx.VERTICAL)
+
+        label = wx.StaticText(self, label="Delay line:")
+        font = label.GetFont(); font.SetWeight(wx.BOLD); label.SetFont(font) 
+        sizer.Add(label, 0, wx.TOP|wx.BOTTOM|wx.RIGHT, 5)
+
+        self.delayTime=OSCSlider(self, "Delay time (s)", default_value=5, max_value=10)
+        sizer.Add(self.delayTime, 0, wx.EXPAND|wx.ALL, 5)
+
+        self.feedback=OSCSlider(self, "Feedback", default_value=.95)
+        sizer.Add(self.feedback, 0, wx.EXPAND|wx.ALL, 5)
+
+        self.SetSizerAndFit(sizer)
+        self.delayTime.slider.Bind(wx.EVT_SCROLL, self.update)
+        self.feedback.slider.Bind(wx.EVT_SCROLL, self.update)
+        self.update(None)
+
+    def update(self, evt):
+        """ Send OSC messages """
+        a=self.delayTime.slider.GetValue()/100.
+        b=self.feedback.slider.GetValue()/100.
+        try:
+            sendOSCMsg("/delay", [a, b])
+        except OSCClientError:
+            pass
+
+class Channel(wx.Panel):
+    """ A single channel """
+    def __init__(self, parent, index):
+        self.index=index
+        wx.Panel.__init__(self, parent)
+        sizer = wx.BoxSizer(wx.VERTICAL)
+        self.SetBackgroundColour((255,0,0))
+
+        label = wx.StaticText(self, label="CH%d" % self.index)
+        font = label.GetFont(); font.SetWeight(wx.BOLD); label.SetFont(font) 
+        sizer.Add(label, 0, wx.TOP|wx.BOTTOM|wx.RIGHT, 5)
+        self.SetSizerAndFit(sizer)
+
+
+class ChannelPanel(wx.Panel):
+    ''' All the channels '''
+    def __init__(self, parent):
+        ''' Constructor '''
+        wx.Panel.__init__(self, parent)
+        sizer = wx.BoxSizer(wx.HORIZONTAL)
+
+        self.channels=[]
+        for i in range(4):
+            c=Channel(self, index=i)
+            #self.feedback.slider.Bind(wx.EVT_SCROLL, self.update)
+            self.channels.append(c)
+            sizer.Add(c, 1, wx.EXPAND)
+
+        self.SetSizerAndFit(sizer)
+        self.update(None)
+
+    def update(self, evt):
+        """ Send OSC messages """
+        pass
+
 
 
 class MainGUI(wx.Frame):
@@ -79,14 +145,16 @@ class MainGUI(wx.Frame):
         self.inputPanel = InputPanel(self)
         self.mainsizer.Add(self.inputPanel, 0, wx.EXPAND|wx.ALL, 5)
 
-        line=wx.StaticLine(self)
-        self.mainsizer.Add(line, 0, wx.EXPAND|wx.ALL, 5)
+        line=wx.StaticLine(self); self.mainsizer.Add(line, 0, wx.EXPAND|wx.ALL, 5)
 
-        self.delayTime=OSCSlider(self, "Delay time (s)", default_value=5, max_value=10)
-        self.mainsizer.Add(self.delayTime, 0, wx.EXPAND|wx.ALL, 5)
+        self.delayPanel = DelayPanel(self)
+        self.mainsizer.Add(self.delayPanel, 0, wx.EXPAND|wx.ALL, 5)
+
+        line=wx.StaticLine(self); self.mainsizer.Add(line, 0, wx.EXPAND|wx.ALL, 5)
+
+        self.channelPanel = ChannelPanel(self)
+        self.mainsizer.Add(self.channelPanel, 1, wx.EXPAND|wx.ALL, 5)
 
-        self.feedback=OSCSlider(self, "Feedback", default_value=.95)
-        self.mainsizer.Add(self.feedback, 0, wx.EXPAND|wx.ALL, 5)
 
         # Put things together
         self.SetSizerAndFit(self.mainsizer)