diff --git a/libs/midi++2/midi++/mmc.h b/libs/midi++2/midi++/mmc.h
index fb8fd2449f..4506bd8a4b 100644
--- a/libs/midi++2/midi++/mmc.h
+++ b/libs/midi++2/midi++/mmc.h
@@ -154,6 +154,13 @@ class MachineControl : public sigc::trackable
 	sigc::signal<void,MachineControl &,size_t,bool> 
 		                             TrackRecordStatusChange;
 	
+	/* The second argument specifies the desired track record enabled
+	   status.
+	*/
+
+	sigc::signal<void,MachineControl &,size_t,bool> 
+		                             TrackMuteChange;
+	
 	/* The second argument points to a byte array containing
 	   the locate target value in MMC Standard Time Code
 	   format (5 bytes, roughly: hrs/mins/secs/frames/subframes)
@@ -196,7 +203,7 @@ class MachineControl : public sigc::trackable
 	byte fixedSpeed;
 	byte lifterDefeat;
 	byte controlDisable;
-	byte trackMute;
+	byte trackMute[MMC_NTRACKS];
 	byte failure;
 	byte selectedTimeCode;
 	byte shortSelectedTimeCode;
@@ -256,8 +263,8 @@ class MachineControl : public sigc::trackable
 	int  do_locate (byte *, size_t len);
 	int  do_step (byte *, size_t len);
 	int  do_shuttle (byte *, size_t len);
-
-	void write_track_record_ready (byte *, size_t len);
+	
+	void write_track_status (byte *, size_t len, byte reg);
 };
 
 } // namespace MIDI
diff --git a/libs/midi++2/mmc.cc b/libs/midi++2/mmc.cc
index c16b243a16..2e42bb59fc 100644
--- a/libs/midi++2/mmc.cc
+++ b/libs/midi++2/mmc.cc
@@ -464,7 +464,11 @@ MachineControl::do_masked_write (byte *msg, size_t len)
 	
 	switch (msg[2]) {
 	case 0x4f:  /* Track Record Ready Status */
-		write_track_record_ready (&msg[3], len - 3);
+		write_track_status (&msg[3], len - 3, msg[2]);
+		break;
+
+	case 0x62: /* track mute */
+		write_track_status (&msg[3], len - 3, msg[2]);
 		break;
 
 	default:
@@ -478,8 +482,7 @@ MachineControl::do_masked_write (byte *msg, size_t len)
 }
 
 void
-MachineControl::write_track_record_ready (byte *msg, size_t /*len*/)
-
+MachineControl::write_track_status (byte *msg, size_t /*len*/, byte reg)
 {
 	size_t n;
 	ssize_t base_track;
@@ -549,14 +552,18 @@ MachineControl::write_track_record_ready (byte *msg, size_t /*len*/)
 			   bit set.
 			*/
 
-			if (msg[2] & (1<<n)) {
-				trackRecordStatus[base_track+n] = true;
-				TrackRecordStatusChange (*this, base_track+n,
-							 true);
-			} else {
-				trackRecordStatus[base_track+n] = false;
-				TrackRecordStatusChange (*this, base_track+n,
-							 false);
+			bool val = (msg[2] & (1<<n));
+			
+			switch (reg) {
+			case 0x4f:
+				trackRecordStatus[base_track+n] = val;
+				TrackRecordStatusChange (*this, base_track+n, val);
+				break;
+				
+			case 0x62:
+				trackMute[base_track+n] = val;
+				TrackMuteChange (*this, base_track+n, val);
+				break;
 			}
 		}