diff -r 97ef988c92c2 -r 25b49d4f1635 src/FingersDance.ViewModel/AnnotationViewModel.cs
--- a/src/FingersDance.ViewModel/AnnotationViewModel.cs	Wed Oct 28 13:46:38 2009 +0100
+++ b/src/FingersDance.ViewModel/AnnotationViewModel.cs	Wed Oct 28 17:07:27 2009 +0100
@@ -10,74 +10,67 @@
 {
     public class AnnotationViewModel : ViewModelBase
     {
-        private float _tcBegin;
-        private float _dur;
-        private String _gestureType;
-        private Color _color;
+        readonly Annotation a;
 
         private float _marginLeft;
         private Double _scaleX = 1;
 
-        public AnnotationViewModel(Annotation a, float marginLeft, Double scaleX)
+        public AnnotationViewModel(Annotation aPar, float marginLeft, Double scaleX)
         {
-            this._tcBegin = a.TcBegin;
-            this._dur = a.Dur;
-            this._gestureType = a.GestureType;
-            this._color = a.Color;
+            a = aPar;
+
             this._marginLeft = marginLeft;
             this._marginLeft = marginLeft;
             this._scaleX = scaleX;
         }
-        public AnnotationViewModel(Annotation a, float marginLeft)
+        public AnnotationViewModel(Annotation aPar, float marginLeft)
         {
-            this._tcBegin = a.TcBegin;
-            this._dur = a.Dur;
-            this._gestureType = a.GestureType;
-            this._color = a.Color;
+            a = aPar;
+
             this._marginLeft = marginLeft;
         }
 
         public float TcBegin
         {
-            get { return _tcBegin; }
+            get { return a.TcBegin; }
             set
             {
-                if (value == _tcBegin || float.IsNaN(value))
+                if (value == a.TcBegin || float.IsNaN(value))
                     return;
-                _tcBegin = value;
+                a.TcBegin = value;
                 base.OnPropertyChanged("TcBegin");
             }
         }
         public float Dur
         {
-            get { return _dur; }
+            get { return a.Dur; }
             set
             {
-                if (value == _dur || float.IsNaN(value))
+                if (value == a.Dur || float.IsNaN(value))
                     return;
-                _dur = value;
+                a.Dur = value;
                 base.OnPropertyChanged("Dur");
             }
         }
         public String GestureType
         {
-            get { return _gestureType; }
+            get { return a.GestureType; }
             set
             {
-                if (value == _gestureType || String.IsNullOrEmpty(value))
+                if (value == a.GestureType || String.IsNullOrEmpty(value))
                     return;
-                _gestureType = value;
+                a.GestureType = value;
                 base.OnPropertyChanged("GestureType");
             }
         }
         public Color Color
         {
-            get { return _color; }
+            get { return a.Color; }
             set
             {
-                if (value == _color)
+                if (value == a.Color)
                     return;
-                _color = value;
+                a.Color = value;
             }
         }
         public float MarginLeft