diff --git a/instrument-desktop/src/main/java/jomu/instrument/desktop/monitor/swing/ToneMapView.java b/instrument-desktop/src/main/java/jomu/instrument/desktop/monitor/swing/ToneMapView.java
index 20db91ae..03db35c8 100644
--- a/instrument-desktop/src/main/java/jomu/instrument/desktop/monitor/swing/ToneMapView.java
+++ b/instrument-desktop/src/main/java/jomu/instrument/desktop/monitor/swing/ToneMapView.java
@@ -579,7 +579,7 @@ private void renderToneMap(ToneTimeFrame ttf) {
 
 			if (showChords) {
 				Color color = Color.BLACK;
-				NoteTrack track = toneMap.getNoteTracker().getChordTrack(1);
+				NoteTrack track = toneMap.getNoteTracker().getChordTrack(4);
 				if (track != null) {
 					NoteListElement[] nles = track.getNotes(timeStart);
 					for (NoteListElement nle : nles) {
@@ -603,7 +603,7 @@ private void renderToneMap(ToneTimeFrame ttf) {
 					}
 				}
 
-				track = toneMap.getNoteTracker().getChordTrack(2);
+				track = toneMap.getNoteTracker().getChordTrack(3);
 				color = Color.BLACK;
 				if (track != null) {
 					NoteListElement[] nles = track.getNotes(timeStart);
@@ -628,7 +628,7 @@ private void renderToneMap(ToneTimeFrame ttf) {
 					}
 				}
 
-				track = toneMap.getNoteTracker().getChordTrack(3);
+				track = toneMap.getNoteTracker().getChordTrack(2);
 				color = Color.BLACK;
 				if (track != null) {
 					NoteListElement[] nles = track.getNotes(timeStart);
@@ -653,7 +653,7 @@ private void renderToneMap(ToneTimeFrame ttf) {
 					}
 				}
 
-				track = toneMap.getNoteTracker().getChordTrack(4);
+				track = toneMap.getNoteTracker().getChordTrack(1);
 				color = Color.BLACK;
 				if (track != null) {
 					NoteListElement[] nles = track.getNotes(timeStart);