diff --git a/MidiPlayer.Activity/MainActivity.Component.cs b/MidiPlayer.Activity/MainActivity.Component.cs
new file mode 100644
index 0000000..6b689be
--- /dev/null
+++ b/MidiPlayer.Activity/MainActivity.Component.cs
@@ -0,0 +1,277 @@
+
+using Android.Support.V7.App;
+using Android.Widget;
+
+namespace MidiPlayer.Activity {
+    /// <summary>
+    ///  partial class for initialize the component
+    /// </summary>
+    public partial class MainActivity : AppCompatActivity {
+
+        ///////////////////////////////////////////////////////////////////////////////////////////////
+        // private Methods [verb]
+
+        /// <summary>
+        /// initialize the component.
+        /// </summary>
+        void initializeComponent() {
+            var _loadSoundFontButton = FindViewById<Button>(Resource.Id.load_soundfont_button);
+            _loadSoundFontButton.Click += onLoadSoundFontButton_Click;
+
+            var _loadMidiFileButton = FindViewById<Button>(Resource.Id.load_midifile_button);
+            _loadMidiFileButton.Click += onLoadMidiFileButton_Click;
+
+            var _startButton = FindViewById<Button>(Resource.Id.start_button);
+            _startButton.Click += onStartButton_Click;
+
+            var _stopButton = FindViewById<Button>(Resource.Id.stop_button);
+            _stopButton.Click += onStopButton_Click;
+
+            var _addPlaylistButton = FindViewById<Button>(Resource.Id.add_playlist_button);
+            _addPlaylistButton.Click += onAddPlaylistButton_Click;
+
+            var _deletePlaylistButton = FindViewById<Button>(Resource.Id.delete_playlist_button);
+            _deletePlaylistButton.Click += onDeletePlaylistButton_Click;
+
+            // fader1
+            var _progNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_1);
+            _progNumberPicker_1.MinValue = 1;
+            _progNumberPicker_1.MaxValue = 128;
+            var _panNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_1);
+            _panNumberPicker_1.MinValue = 1;
+            _panNumberPicker_1.MaxValue = 128;
+            _panNumberPicker_1.Value = 65;
+            var _volNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_1);
+            _volNumberPicker_1.MinValue = 1;
+            _volNumberPicker_1.MaxValue = 128;
+            _volNumberPicker_1.Value = 104;
+            var _sendSynthButton_1 = FindViewById<Button>(Resource.Id.send_synth_button_1);
+            _sendSynthButton_1.Click += onSendSynthButton_1_Click;
+
+            // fader2
+            var _progNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_2);
+            _progNumberPicker_2.MinValue = 1;
+            _progNumberPicker_2.MaxValue = 128;
+            var _panNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_2);
+            _panNumberPicker_2.MinValue = 1;
+            _panNumberPicker_2.MaxValue = 128;
+            _panNumberPicker_2.Value = 65;
+            var _volNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_2);
+            _volNumberPicker_2.MinValue = 1;
+            _volNumberPicker_2.MaxValue = 128;
+            _volNumberPicker_2.Value = 104;
+            var _sendSynthButton_2 = FindViewById<Button>(Resource.Id.send_synth_button_2);
+            _sendSynthButton_2.Click += onSendSynthButton_2_Click;
+
+            // fader3
+            var _progNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_3);
+            _progNumberPicker_3.MinValue = 1;
+            _progNumberPicker_3.MaxValue = 128;
+            var _panNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_3);
+            _panNumberPicker_3.MinValue = 1;
+            _panNumberPicker_3.MaxValue = 128;
+            _panNumberPicker_3.Value = 65;
+            var _volNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_3);
+            _volNumberPicker_3.MinValue = 1;
+            _volNumberPicker_3.MaxValue = 128;
+            _volNumberPicker_3.Value = 104;
+            var _sendSynthButton_3 = FindViewById<Button>(Resource.Id.send_synth_button_3);
+            _sendSynthButton_3.Click += onSendSynthButton_3_Click;
+
+            // fader4
+            var _progNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_4);
+            _progNumberPicker_4.MinValue = 1;
+            _progNumberPicker_4.MaxValue = 128;
+            var _panNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_4);
+            _panNumberPicker_4.MinValue = 1;
+            _panNumberPicker_4.MaxValue = 128;
+            _panNumberPicker_4.Value = 65;
+            var _volNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_4);
+            _volNumberPicker_4.MinValue = 1;
+            _volNumberPicker_4.MaxValue = 128;
+            _volNumberPicker_4.Value = 104;
+            var _sendSynthButton_4 = FindViewById<Button>(Resource.Id.send_synth_button_4);
+            _sendSynthButton_4.Click += onSendSynthButton_4_Click;
+
+            // fader5
+            var _progNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_5);
+            _progNumberPicker_5.MinValue = 1;
+            _progNumberPicker_5.MaxValue = 128;
+            var _panNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_5);
+            _panNumberPicker_5.MinValue = 1;
+            _panNumberPicker_5.MaxValue = 128;
+            _panNumberPicker_5.Value = 65;
+            var _volNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_5);
+            _volNumberPicker_5.MinValue = 1;
+            _volNumberPicker_5.MaxValue = 128;
+            _volNumberPicker_5.Value = 104;
+            var _sendSynthButton_5 = FindViewById<Button>(Resource.Id.send_synth_button_5);
+            _sendSynthButton_5.Click += onSendSynthButton_5_Click;
+
+            // fader6
+            var _progNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_6);
+            _progNumberPicker_6.MinValue = 1;
+            _progNumberPicker_6.MaxValue = 128;
+            var _panNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_6);
+            _panNumberPicker_6.MinValue = 1;
+            _panNumberPicker_6.MaxValue = 128;
+            _panNumberPicker_6.Value = 65;
+            var _volNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_6);
+            _volNumberPicker_6.MinValue = 1;
+            _volNumberPicker_6.MaxValue = 128;
+            _volNumberPicker_6.Value = 104;
+            var _sendSynthButton_6 = FindViewById<Button>(Resource.Id.send_synth_button_6);
+            _sendSynthButton_6.Click += onSendSynthButton_6_Click;
+
+            // fader7
+            var _progNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_7);
+            _progNumberPicker_7.MinValue = 1;
+            _progNumberPicker_7.MaxValue = 128;
+            var _panNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_7);
+            _panNumberPicker_7.MinValue = 1;
+            _panNumberPicker_7.MaxValue = 128;
+            _panNumberPicker_7.Value = 65;
+            var _volNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_7);
+            _volNumberPicker_7.MinValue = 1;
+            _volNumberPicker_7.MaxValue = 128;
+            _volNumberPicker_7.Value = 104;
+            var _sendSynthButton_7 = FindViewById<Button>(Resource.Id.send_synth_button_7);
+            _sendSynthButton_7.Click += onSendSynthButton_7_Click;
+
+            // fader8
+            var _progNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_8);
+            _progNumberPicker_8.MinValue = 1;
+            _progNumberPicker_8.MaxValue = 128;
+            var _panNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_8);
+            _panNumberPicker_8.MinValue = 1;
+            _panNumberPicker_8.MaxValue = 128;
+            _panNumberPicker_8.Value = 65;
+            var _volNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_8);
+            _volNumberPicker_8.MinValue = 1;
+            _volNumberPicker_8.MaxValue = 128;
+            _volNumberPicker_8.Value = 104;
+            var _sendSynthButton_8 = FindViewById<Button>(Resource.Id.send_synth_button_8);
+            _sendSynthButton_8.Click += onSendSynthButton_8_Click;
+
+            // fader9
+            var _progNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_9);
+            _progNumberPicker_9.MinValue = 1;
+            _progNumberPicker_9.MaxValue = 128;
+            var _panNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_9);
+            _panNumberPicker_9.MinValue = 1;
+            _panNumberPicker_9.MaxValue = 128;
+            _panNumberPicker_9.Value = 65;
+            var _volNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_9);
+            _volNumberPicker_9.MinValue = 1;
+            _volNumberPicker_9.MaxValue = 128;
+            _volNumberPicker_9.Value = 104;
+            var _sendSynthButton_9 = FindViewById<Button>(Resource.Id.send_synth_button_9);
+            _sendSynthButton_9.Click += onSendSynthButton_9_Click;
+
+            // fader10
+            var _progNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_10);
+            _progNumberPicker_10.MinValue = 1;
+            _progNumberPicker_10.MaxValue = 128;
+            var _panNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_10);
+            _panNumberPicker_10.MinValue = 1;
+            _panNumberPicker_10.MaxValue = 128;
+            _panNumberPicker_10.Value = 65;
+            var _volNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_10);
+            _volNumberPicker_10.MinValue = 1;
+            _volNumberPicker_10.MaxValue = 128;
+            _volNumberPicker_10.Value = 104;
+            var _sendSynthButton_10 = FindViewById<Button>(Resource.Id.send_synth_button_10);
+            _sendSynthButton_10.Click += onSendSynthButton_10_Click;
+
+            // fader11
+            var _progNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_11);
+            _progNumberPicker_11.MinValue = 1;
+            _progNumberPicker_11.MaxValue = 128;
+            var _panNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_11);
+            _panNumberPicker_11.MinValue = 1;
+            _panNumberPicker_11.MaxValue = 128;
+            _panNumberPicker_11.Value = 65;
+            var _volNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_11);
+            _volNumberPicker_11.MinValue = 1;
+            _volNumberPicker_11.MaxValue = 128;
+            _volNumberPicker_11.Value = 104;
+            var _sendSynthButton_11 = FindViewById<Button>(Resource.Id.send_synth_button_11);
+            _sendSynthButton_11.Click += onSendSynthButton_11_Click;
+
+            // fader12
+            var _progNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_12);
+            _progNumberPicker_12.MinValue = 1;
+            _progNumberPicker_12.MaxValue = 128;
+            var _panNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_12);
+            _panNumberPicker_12.MinValue = 1;
+            _panNumberPicker_12.MaxValue = 128;
+            _panNumberPicker_12.Value = 65;
+            var _volNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_12);
+            _volNumberPicker_12.MinValue = 1;
+            _volNumberPicker_12.MaxValue = 128;
+            _volNumberPicker_12.Value = 104;
+            var _sendSynthButton_12 = FindViewById<Button>(Resource.Id.send_synth_button_12);
+            _sendSynthButton_12.Click += onSendSynthButton_12_Click;
+
+            // fader13
+            var _progNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_13);
+            _progNumberPicker_13.MinValue = 1;
+            _progNumberPicker_13.MaxValue = 128;
+            var _panNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_13);
+            _panNumberPicker_13.MinValue = 1;
+            _panNumberPicker_13.MaxValue = 128;
+            _panNumberPicker_13.Value = 65;
+            var _volNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_13);
+            _volNumberPicker_13.MinValue = 1;
+            _volNumberPicker_13.MaxValue = 128;
+            _volNumberPicker_13.Value = 104;
+            var _sendSynthButton_13 = FindViewById<Button>(Resource.Id.send_synth_button_13);
+            _sendSynthButton_13.Click += onSendSynthButton_13_Click;
+
+            // fader14
+            var _progNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_14);
+            _progNumberPicker_14.MinValue = 1;
+            _progNumberPicker_14.MaxValue = 128;
+            var _panNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_14);
+            _panNumberPicker_14.MinValue = 1;
+            _panNumberPicker_14.MaxValue = 128;
+            _panNumberPicker_14.Value = 65;
+            var _volNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_14);
+            _volNumberPicker_14.MinValue = 1;
+            _volNumberPicker_14.MaxValue = 128;
+            _volNumberPicker_14.Value = 104;
+            var _sendSynthButton_14 = FindViewById<Button>(Resource.Id.send_synth_button_14);
+            _sendSynthButton_14.Click += onSendSynthButton_14_Click;
+
+            // fader15
+            var _progNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_15);
+            _progNumberPicker_15.MinValue = 1;
+            _progNumberPicker_15.MaxValue = 128;
+            var _panNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_15);
+            _panNumberPicker_15.MinValue = 1;
+            _panNumberPicker_15.MaxValue = 128;
+            _panNumberPicker_15.Value = 65;
+            var _volNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_15);
+            _volNumberPicker_15.MinValue = 1;
+            _volNumberPicker_15.MaxValue = 128;
+            _volNumberPicker_15.Value = 104;
+            var _sendSynthButton_15 = FindViewById<Button>(Resource.Id.send_synth_button_15);
+            _sendSynthButton_15.Click += onSendSynthButton_15_Click;
+
+            // fader16
+            var _progNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_16);
+            _progNumberPicker_16.MinValue = 1;
+            _progNumberPicker_16.MaxValue = 128;
+            var _panNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_16);
+            _panNumberPicker_16.MinValue = 1;
+            _panNumberPicker_16.MaxValue = 128;
+            _panNumberPicker_16.Value = 65;
+            var _volNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_16);
+            _volNumberPicker_16.MinValue = 1;
+            _volNumberPicker_16.MaxValue = 128;
+            _volNumberPicker_16.Value = 104;
+            var _sendSynthButton_16 = FindViewById<Button>(Resource.Id.send_synth_button_16);
+            _sendSynthButton_16.Click += onSendSynthButton_16_Click;
+        }
+    }
+}
diff --git a/MidiPlayer.Activity/MainActivity.cs b/MidiPlayer.Activity/MainActivity.cs
index 4f03cac..d2ad541 100644
--- a/MidiPlayer.Activity/MainActivity.cs
+++ b/MidiPlayer.Activity/MainActivity.cs
@@ -18,7 +18,7 @@
 namespace MidiPlayer.Activity {
 
     [Activity(Label = "@string/app_name", Theme = "@style/Base.Theme.MaterialComponents.Light.DarkActionBar.Bridge", MainLauncher = true, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation, ScreenOrientation = ScreenOrientation.Landscape)]
-    public class MainActivity : AppCompatActivity {
+    public partial class MainActivity : AppCompatActivity {
 
         ///////////////////////////////////////////////////////////////////////////////////////////////
         // Fields
@@ -163,269 +163,6 @@ void requestPermissions() {
             }
         }
 
-        /// <summary>
-        /// initialize the component.
-        /// </summary>
-        void initializeComponent() {
-            var _loadSoundFontButton = FindViewById<Button>(Resource.Id.load_soundfont_button);
-            _loadSoundFontButton.Click += onLoadSoundFontButton_Click;
-
-            var _loadMidiFileButton = FindViewById<Button>(Resource.Id.load_midifile_button);
-            _loadMidiFileButton.Click += onLoadMidiFileButton_Click;
-
-            var _startButton = FindViewById<Button>(Resource.Id.start_button);
-            _startButton.Click += onStartButton_Click;
-
-            var _stopButton = FindViewById<Button>(Resource.Id.stop_button);
-            _stopButton.Click += onStopButton_Click;
-
-            var _addPlaylistButton = FindViewById<Button>(Resource.Id.add_playlist_button);
-            _addPlaylistButton.Click += onAddPlaylistButton_Click;
-
-            var _deletePlaylistButton = FindViewById<Button>(Resource.Id.delete_playlist_button);
-            _deletePlaylistButton.Click += onDeletePlaylistButton_Click;
-
-            // fader1
-            var _progNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_1);
-            _progNumberPicker_1.MinValue = 1;
-            _progNumberPicker_1.MaxValue = 128;
-            var _panNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_1);
-            _panNumberPicker_1.MinValue = 1;
-            _panNumberPicker_1.MaxValue = 128;
-            _panNumberPicker_1.Value = 65;
-            var _volNumberPicker_1 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_1);
-            _volNumberPicker_1.MinValue = 1;
-            _volNumberPicker_1.MaxValue = 128;
-            _volNumberPicker_1.Value = 104;
-            var _sendSynthButton_1 = FindViewById<Button>(Resource.Id.send_synth_button_1);
-            _sendSynthButton_1.Click += onSendSynthButton_1_Click;
-
-            // fader2
-            var _progNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_2);
-            _progNumberPicker_2.MinValue = 1;
-            _progNumberPicker_2.MaxValue = 128;
-            var _panNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_2);
-            _panNumberPicker_2.MinValue = 1;
-            _panNumberPicker_2.MaxValue = 128;
-            _panNumberPicker_2.Value = 65;
-            var _volNumberPicker_2 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_2);
-            _volNumberPicker_2.MinValue = 1;
-            _volNumberPicker_2.MaxValue = 128;
-            _volNumberPicker_2.Value = 104;
-            var _sendSynthButton_2 = FindViewById<Button>(Resource.Id.send_synth_button_2);
-            _sendSynthButton_2.Click += onSendSynthButton_2_Click;
-
-            // fader3
-            var _progNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_3);
-            _progNumberPicker_3.MinValue = 1;
-            _progNumberPicker_3.MaxValue = 128;
-            var _panNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_3);
-            _panNumberPicker_3.MinValue = 1;
-            _panNumberPicker_3.MaxValue = 128;
-            _panNumberPicker_3.Value = 65;
-            var _volNumberPicker_3 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_3);
-            _volNumberPicker_3.MinValue = 1;
-            _volNumberPicker_3.MaxValue = 128;
-            _volNumberPicker_3.Value = 104;
-            var _sendSynthButton_3 = FindViewById<Button>(Resource.Id.send_synth_button_3);
-            _sendSynthButton_3.Click += onSendSynthButton_3_Click;
-
-            // fader4
-            var _progNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_4);
-            _progNumberPicker_4.MinValue = 1;
-            _progNumberPicker_4.MaxValue = 128;
-            var _panNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_4);
-            _panNumberPicker_4.MinValue = 1;
-            _panNumberPicker_4.MaxValue = 128;
-            _panNumberPicker_4.Value = 65;
-            var _volNumberPicker_4 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_4);
-            _volNumberPicker_4.MinValue = 1;
-            _volNumberPicker_4.MaxValue = 128;
-            _volNumberPicker_4.Value = 104;
-            var _sendSynthButton_4 = FindViewById<Button>(Resource.Id.send_synth_button_4);
-            _sendSynthButton_4.Click += onSendSynthButton_4_Click;
-
-            // fader5
-            var _progNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_5);
-            _progNumberPicker_5.MinValue = 1;
-            _progNumberPicker_5.MaxValue = 128;
-            var _panNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_5);
-            _panNumberPicker_5.MinValue = 1;
-            _panNumberPicker_5.MaxValue = 128;
-            _panNumberPicker_5.Value = 65;
-            var _volNumberPicker_5 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_5);
-            _volNumberPicker_5.MinValue = 1;
-            _volNumberPicker_5.MaxValue = 128;
-            _volNumberPicker_5.Value = 104;
-            var _sendSynthButton_5 = FindViewById<Button>(Resource.Id.send_synth_button_5);
-            _sendSynthButton_5.Click += onSendSynthButton_5_Click;
-
-            // fader6
-            var _progNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_6);
-            _progNumberPicker_6.MinValue = 1;
-            _progNumberPicker_6.MaxValue = 128;
-            var _panNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_6);
-            _panNumberPicker_6.MinValue = 1;
-            _panNumberPicker_6.MaxValue = 128;
-            _panNumberPicker_6.Value = 65;
-            var _volNumberPicker_6 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_6);
-            _volNumberPicker_6.MinValue = 1;
-            _volNumberPicker_6.MaxValue = 128;
-            _volNumberPicker_6.Value = 104;
-            var _sendSynthButton_6 = FindViewById<Button>(Resource.Id.send_synth_button_6);
-            _sendSynthButton_6.Click += onSendSynthButton_6_Click;
-
-            // fader7
-            var _progNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_7);
-            _progNumberPicker_7.MinValue = 1;
-            _progNumberPicker_7.MaxValue = 128;
-            var _panNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_7);
-            _panNumberPicker_7.MinValue = 1;
-            _panNumberPicker_7.MaxValue = 128;
-            _panNumberPicker_7.Value = 65;
-            var _volNumberPicker_7 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_7);
-            _volNumberPicker_7.MinValue = 1;
-            _volNumberPicker_7.MaxValue = 128;
-            _volNumberPicker_7.Value = 104;
-            var _sendSynthButton_7 = FindViewById<Button>(Resource.Id.send_synth_button_7);
-            _sendSynthButton_7.Click += onSendSynthButton_7_Click;
-
-            // fader8
-            var _progNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_8);
-            _progNumberPicker_8.MinValue = 1;
-            _progNumberPicker_8.MaxValue = 128;
-            var _panNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_8);
-            _panNumberPicker_8.MinValue = 1;
-            _panNumberPicker_8.MaxValue = 128;
-            _panNumberPicker_8.Value = 65;
-            var _volNumberPicker_8 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_8);
-            _volNumberPicker_8.MinValue = 1;
-            _volNumberPicker_8.MaxValue = 128;
-            _volNumberPicker_8.Value = 104;
-            var _sendSynthButton_8 = FindViewById<Button>(Resource.Id.send_synth_button_8);
-            _sendSynthButton_8.Click += onSendSynthButton_8_Click;
-
-            // fader9
-            var _progNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_9);
-            _progNumberPicker_9.MinValue = 1;
-            _progNumberPicker_9.MaxValue = 128;
-            var _panNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_9);
-            _panNumberPicker_9.MinValue = 1;
-            _panNumberPicker_9.MaxValue = 128;
-            _panNumberPicker_9.Value = 65;
-            var _volNumberPicker_9 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_9);
-            _volNumberPicker_9.MinValue = 1;
-            _volNumberPicker_9.MaxValue = 128;
-            _volNumberPicker_9.Value = 104;
-            var _sendSynthButton_9 = FindViewById<Button>(Resource.Id.send_synth_button_9);
-            _sendSynthButton_9.Click += onSendSynthButton_9_Click;
-
-            // fader10
-            var _progNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_10);
-            _progNumberPicker_10.MinValue = 1;
-            _progNumberPicker_10.MaxValue = 128;
-            var _panNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_10);
-            _panNumberPicker_10.MinValue = 1;
-            _panNumberPicker_10.MaxValue = 128;
-            _panNumberPicker_10.Value = 65;
-            var _volNumberPicker_10 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_10);
-            _volNumberPicker_10.MinValue = 1;
-            _volNumberPicker_10.MaxValue = 128;
-            _volNumberPicker_10.Value = 104;
-            var _sendSynthButton_10 = FindViewById<Button>(Resource.Id.send_synth_button_10);
-            _sendSynthButton_10.Click += onSendSynthButton_10_Click;
-
-            // fader11
-            var _progNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_11);
-            _progNumberPicker_11.MinValue = 1;
-            _progNumberPicker_11.MaxValue = 128;
-            var _panNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_11);
-            _panNumberPicker_11.MinValue = 1;
-            _panNumberPicker_11.MaxValue = 128;
-            _panNumberPicker_11.Value = 65;
-            var _volNumberPicker_11 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_11);
-            _volNumberPicker_11.MinValue = 1;
-            _volNumberPicker_11.MaxValue = 128;
-            _volNumberPicker_11.Value = 104;
-            var _sendSynthButton_11 = FindViewById<Button>(Resource.Id.send_synth_button_11);
-            _sendSynthButton_11.Click += onSendSynthButton_11_Click;
-
-            // fader12
-            var _progNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_12);
-            _progNumberPicker_12.MinValue = 1;
-            _progNumberPicker_12.MaxValue = 128;
-            var _panNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_12);
-            _panNumberPicker_12.MinValue = 1;
-            _panNumberPicker_12.MaxValue = 128;
-            _panNumberPicker_12.Value = 65;
-            var _volNumberPicker_12 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_12);
-            _volNumberPicker_12.MinValue = 1;
-            _volNumberPicker_12.MaxValue = 128;
-            _volNumberPicker_12.Value = 104;
-            var _sendSynthButton_12 = FindViewById<Button>(Resource.Id.send_synth_button_12);
-            _sendSynthButton_12.Click += onSendSynthButton_12_Click;
-
-            // fader13
-            var _progNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_13);
-            _progNumberPicker_13.MinValue = 1;
-            _progNumberPicker_13.MaxValue = 128;
-            var _panNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_13);
-            _panNumberPicker_13.MinValue = 1;
-            _panNumberPicker_13.MaxValue = 128;
-            _panNumberPicker_13.Value = 65;
-            var _volNumberPicker_13 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_13);
-            _volNumberPicker_13.MinValue = 1;
-            _volNumberPicker_13.MaxValue = 128;
-            _volNumberPicker_13.Value = 104;
-            var _sendSynthButton_13 = FindViewById<Button>(Resource.Id.send_synth_button_13);
-            _sendSynthButton_13.Click += onSendSynthButton_13_Click;
-
-            // fader14
-            var _progNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_14);
-            _progNumberPicker_14.MinValue = 1;
-            _progNumberPicker_14.MaxValue = 128;
-            var _panNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_14);
-            _panNumberPicker_14.MinValue = 1;
-            _panNumberPicker_14.MaxValue = 128;
-            _panNumberPicker_14.Value = 65;
-            var _volNumberPicker_14 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_14);
-            _volNumberPicker_14.MinValue = 1;
-            _volNumberPicker_14.MaxValue = 128;
-            _volNumberPicker_14.Value = 104;
-            var _sendSynthButton_14 = FindViewById<Button>(Resource.Id.send_synth_button_14);
-            _sendSynthButton_14.Click += onSendSynthButton_14_Click;
-
-            // fader15
-            var _progNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_15);
-            _progNumberPicker_15.MinValue = 1;
-            _progNumberPicker_15.MaxValue = 128;
-            var _panNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_15);
-            _panNumberPicker_15.MinValue = 1;
-            _panNumberPicker_15.MaxValue = 128;
-            _panNumberPicker_15.Value = 65;
-            var _volNumberPicker_15 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_15);
-            _volNumberPicker_15.MinValue = 1;
-            _volNumberPicker_15.MaxValue = 128;
-            _volNumberPicker_15.Value = 104;
-            var _sendSynthButton_15 = FindViewById<Button>(Resource.Id.send_synth_button_15);
-            _sendSynthButton_15.Click += onSendSynthButton_15_Click;
-
-            // fader16
-            var _progNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.prog_number_picker_16);
-            _progNumberPicker_16.MinValue = 1;
-            _progNumberPicker_16.MaxValue = 128;
-            var _panNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.pan_number_picker_16);
-            _panNumberPicker_16.MinValue = 1;
-            _panNumberPicker_16.MaxValue = 128;
-            _panNumberPicker_16.Value = 65;
-            var _volNumberPicker_16 = FindViewById<NumberPicker>(Resource.Id.vol_number_picker_16);
-            _volNumberPicker_16.MinValue = 1;
-            _volNumberPicker_16.MaxValue = 128;
-            _volNumberPicker_16.Value = 104;
-            var _sendSynthButton_16 = FindViewById<Button>(Resource.Id.send_synth_button_16);
-            _sendSynthButton_16.Click += onSendSynthButton_16_Click;
-        }
-
         void onLoadSoundFontButton_Click(object sender, EventArgs e) {
             Log.Info("loadSoundFontButton clicked.");
             try {
diff --git a/MidiPlayer.Activity/MidiPlayer.Activity.csproj b/MidiPlayer.Activity/MidiPlayer.Activity.csproj
index e378c03..e0aaf96 100644
--- a/MidiPlayer.Activity/MidiPlayer.Activity.csproj
+++ b/MidiPlayer.Activity/MidiPlayer.Activity.csproj
@@ -68,6 +68,7 @@
   </ItemGroup>
   <ItemGroup>
     <Compile Include="MainActivity.cs" />
+    <Compile Include="MainActivity.Component.cs" />
     <Compile Include="Resources\Resource.designer.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>