diff --git a/src/engine/platform/c64.cpp b/src/engine/platform/c64.cpp
index 5c3b1b22c..3216be2d3 100644
--- a/src/engine/platform/c64.cpp
+++ b/src/engine/platform/c64.cpp
@@ -190,7 +190,7 @@ int DivPlatformC64::dispatch(DivCommand c) {
       sid.write(c.chan*7+4,(chan[c.chan].wave<<4)|(chan[c.chan].ring<<2)|(chan[c.chan].sync<<1)|chan[c.chan].active);
       break;
     case DIV_CMD_LEGATO:
-      chan[c.chan].baseFreq=round(FREQ_BASE*pow(2.0f,((float)c.value/12.0f)));
+      chan[c.chan].baseFreq=round(FREQ_BASE*pow(2.0f,((float)(c.value+((!chan[c.chan].std.arpMode)?(chan[c.chan].std.arp-12):(0)))/12.0f)));
       chan[c.chan].freqChanged=true;
       chan[c.chan].note=c.value;
       break;
diff --git a/src/engine/platform/gb.cpp b/src/engine/platform/gb.cpp
index 331e31cbe..b04b1a334 100644
--- a/src/engine/platform/gb.cpp
+++ b/src/engine/platform/gb.cpp
@@ -238,7 +238,7 @@ int DivPlatformGB::dispatch(DivCommand c) {
     }
     case DIV_CMD_LEGATO:
       if (c.chan==3) break;
-      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)c.value/12.0f)));
+      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)(c.value+((!chan[c.chan].std.arpMode)?(chan[c.chan].std.arp-12):(0)))/12.0f)));
       chan[c.chan].freqChanged=true;
       chan[c.chan].note=c.value;
       break;
diff --git a/src/engine/platform/nes.cpp b/src/engine/platform/nes.cpp
index 310108c0c..a978ae9b2 100644
--- a/src/engine/platform/nes.cpp
+++ b/src/engine/platform/nes.cpp
@@ -250,7 +250,7 @@ int DivPlatformNES::dispatch(DivCommand c) {
     }
     case DIV_CMD_LEGATO:
       if (c.chan==3) break;
-      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)c.value/12.0f)));
+      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)(c.value+((!chan[c.chan].std.arpMode)?(chan[c.chan].std.arp-12):(0)))/12.0f)));
       chan[c.chan].freqChanged=true;
       chan[c.chan].note=c.value;
       break;
diff --git a/src/engine/platform/pce.cpp b/src/engine/platform/pce.cpp
index 719ad3175..2f5c1ab8d 100644
--- a/src/engine/platform/pce.cpp
+++ b/src/engine/platform/pce.cpp
@@ -235,7 +235,7 @@ int DivPlatformPCE::dispatch(DivCommand c) {
       break;
     }
     case DIV_CMD_LEGATO:
-      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)c.value/12.0f)));
+      chan[c.chan].baseFreq=round(FREQ_BASE/pow(2.0f,((float)(c.value+((!chan[c.chan].std.arpMode)?(chan[c.chan].std.arp-12):(0)))/12.0f)));
       chan[c.chan].freqChanged=true;
       chan[c.chan].note=c.value;
       break;
diff --git a/src/engine/platform/sms.cpp b/src/engine/platform/sms.cpp
index 47d21e616..94ffdcc8e 100644
--- a/src/engine/platform/sms.cpp
+++ b/src/engine/platform/sms.cpp
@@ -140,7 +140,7 @@ int DivPlatformSMS::dispatch(DivCommand c) {
       updateSNMode=true;
       break;
     case DIV_CMD_LEGATO:
-      chan[c.chan].baseFreq=round(1712.0f/pow(2.0f,((float)c.value/12.0f)));
+      chan[c.chan].baseFreq=round(1712.0f/pow(2.0f,((float)(c.value+((!chan[c.chan].std.arpMode)?(chan[c.chan].std.arp-12):(0)))/12.0f)));
       chan[c.chan].freqChanged=true;
       chan[c.chan].note=c.value;
       break;