- allow creation of control change message

Lib.Midi/Messages/ControlChangeMessage.cs

@@ -8,10 +8,20 @@ namespace Lib.Midi.Messages
 {
     public class ControlChangeMessage : MidiMessage
     {
-        public ControlChangeMessage(long absolutTime, int channelNumber, int value)
+        public ControlChangeMessage(ControlChangeEvent controlChangeEvent)
-            : base(new ControlChangeEvent(absolutTime, channelNumber, (MidiController) 16, value))
+            : base(controlChangeEvent)
         {
             
         }
+        
+        public ControlChangeMessage(long absolutTime, int channelNumber, byte controller, int value)
+            : base(new ControlChangeEvent(absolutTime, channelNumber, (MidiController) controller, value))
+        {
+            
+        }
+
+        private ControlChangeEvent ControlChangeEvent => (ControlChangeEvent) _midiEvent;
+        public int Value => ControlChangeEvent.ControllerValue;
+        public byte Controller => (byte) ControlChangeEvent.Controller;
     }
 }

Lib.Midi/Messages/Factories/MidiMessageFactory.cs

@@ -17,6 +17,8 @@ namespace Lib.Midi.Messages.Factories
                 return new NoteOnMessage(noteOnEvent);
             else if (midiEvent is NoteEvent noteEvent)
                 return new NoteMessage(noteEvent);
+            else if (midiEvent is ControlChangeEvent controlChangeEvent)
+                return new ControlChangeMessage(controlChangeEvent);
 
             return null;
         }