diff --git a/src/performance.ini b/src/performance.ini
index 1ab54b2..aa129f0 100644
--- a/src/performance.ini
+++ b/src/performance.ini
@@ -21,6 +21,7 @@
 #PortamentoGlissando#=0 # 0 .. 1
 #PortamentoTime#=0 # 0 .. 99
 #VoiceData#= # space separated hex numbers of 156 voice parameters. Example: 5F 1D 14 32 63 [....] 20 55 
+#MonoMode#=0 # 0-off .. 1-On
 
 # TG1
 BankNumber1=0
@@ -41,6 +42,7 @@ PortamentoMode1=0
 PortamentoGlissando1=0
 PortamentoTime1=0
 VoiceData1=
+MonoMode1=0 
 
 # TG2
 BankNumber2=0
@@ -61,6 +63,7 @@ PortamentoMode2=0
 PortamentoGlissando2=0
 PortamentoTime2=0
 VoiceData2=
+MonoMode2=0 
 
 # TG3
 BankNumber3=0
@@ -81,6 +84,7 @@ PortamentoMode3=0
 PortamentoGlissando3=0
 PortamentoTime3=0
 VoiceData3=
+MonoMode3=0 
 
 # TG4
 BankNumber4=0
@@ -101,6 +105,7 @@ PortamentoMode4=0
 PortamentoGlissando4=0
 PortamentoTime4=0
 VoiceData4=
+MonoMode4=0 
 
 # TG5
 BankNumber5=0
@@ -121,6 +126,7 @@ PortamentoMode5=0
 PortamentoGlissando5=0
 PortamentoTime5=0
 VoiceData5=
+MonoMode5=0 
 
 # TG6
 BankNumber6=0
@@ -141,6 +147,7 @@ PortamentoMode6=0
 PortamentoGlissando6=0
 PortamentoTime6=0
 VoiceData6=
+MonoMode6=0 
 
 # TG7
 BankNumber7=0
@@ -161,6 +168,7 @@ PortamentoMode7=0
 PortamentoGlissando7=0
 PortamentoTime7=0
 VoiceData7=
+MonoMode7=0 
 
 # TG8
 BankNumber8=0
@@ -181,6 +189,7 @@ PortamentoMode8=0
 PortamentoGlissando8=0
 PortamentoTime8=0
 VoiceData8=
+MonoMode8=0 
 
 # Effects
 #CompressorEnable=1	# 0: off, 1: on