diff --git a/src/engine/dispatch.h b/src/engine/dispatch.h
index 5a1c2db64..37e36a2bf 100644
--- a/src/engine/dispatch.h
+++ b/src/engine/dispatch.h
@@ -56,6 +56,7 @@ enum DivDispatchCmds {
   DIV_CMD_SAMPLE_BANK,
   DIV_CMD_SAMPLE_POS,
 
+  DIV_CMD_FM_HARD_RESET,
   DIV_CMD_FM_LFO,
   DIV_CMD_FM_LFO_WAVE,
   DIV_CMD_FM_TL,
diff --git a/src/engine/platform/arcade.cpp b/src/engine/platform/arcade.cpp
index 7c465a511..e9618f29b 100644
--- a/src/engine/platform/arcade.cpp
+++ b/src/engine/platform/arcade.cpp
@@ -132,6 +132,9 @@ const char* DivPlatformArcade::getEffectName(unsigned char effect) {
     case 0x1f:
       return "1Fxx: Set PM depth (0 to 7F)";
       break;
+    case 0x30:
+      return "30xx: Toggle hard envelope reset on new notes";
+      break;
   }
   return NULL;
 }
diff --git a/src/engine/platform/arcade.h b/src/engine/platform/arcade.h
index a305eefdb..a6ec82c94 100644
--- a/src/engine/platform/arcade.h
+++ b/src/engine/platform/arcade.h
@@ -39,10 +39,30 @@ class DivPlatformArcade: public DivDispatch {
       int freq, baseFreq, pitch, note;
       unsigned char ins;
       signed char konCycles;
-      bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, portaPause, furnacePCM;
+      bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, portaPause, furnacePCM, hardReset;
       int vol, outVol;
       unsigned char chVolL, chVolR;
-      Channel(): freqH(0), freqL(0), freq(0), baseFreq(0), pitch(0), note(0), ins(-1), active(false), insChanged(true), freqChanged(false), keyOn(false), keyOff(false), inPorta(false), portaPause(false), furnacePCM(false), vol(0), outVol(0), chVolL(127), chVolR(127) {}
+      Channel():
+        freqH(0),
+        freqL(0),
+        freq(0),
+        baseFreq(0),
+        pitch(0),
+        note(0),
+        ins(-1),
+        active(false),
+        insChanged(true),
+        freqChanged(false),
+        keyOn(false),
+        keyOff(false),
+        inPorta(false),
+        portaPause(false),
+        furnacePCM(false),
+        hardReset(false),
+        vol(0),
+        outVol(0),
+        chVolL(127),
+        chVolR(127) {}
     };
     Channel chan[8];
     struct QueuedWrite {
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 0aff2b43a..ba9c0f566 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -74,9 +74,9 @@ const char* DivPlatformGenesis::getEffectName(unsigned char effect) {
     case 0x1d:
       return "1Dxx: Set attack of operator 4 (0 to 1F)";
       break;
-    case 0x20:
-      return "20xy: Set PSG noise mode (x: preset freq/ch3 freq; y: thin pulse/noise)";
-      break; 
+    case 0x30:
+      return "30xx: Toggle hard envelope reset on new notes";
+      break;
   }
   return NULL;
 }
@@ -346,7 +346,25 @@ void DivPlatformGenesis::tick() {
     }
 
     if (chan[i].keyOn || chan[i].keyOff) {
+      if (chan[i].hardReset && chan[i].keyOn) {
+        for (int j=0; j<4; j++) {
+          unsigned short baseAddr=chanOffs[i]|opOffs[j];
+          immWrite(baseAddr+ADDR_SL_RR,0x0f);
+          immWrite(baseAddr+ADDR_TL,0x7f);
+          oldWrites[baseAddr+ADDR_SL_RR]=-1;
+          oldWrites[baseAddr+ADDR_TL]=-1;
+          //rWrite(baseAddr+ADDR_SL_RR,(op.rr&15)|(op.sl<<4));
+        }
+      }
       immWrite(0x28,0x00|konOffs[i]);
+      if (chan[i].hardReset && chan[i].keyOn) {
+        for (int j=0; j<4; j++) {
+          unsigned short baseAddr=chanOffs[i]|opOffs[j];
+          for (int k=0; k<5; k++) {
+            immWrite(baseAddr+ADDR_SL_RR,0x0f);
+          }
+        }
+      }
       chan[i].keyOff=false;
     }
   }
@@ -715,9 +733,11 @@ int DivPlatformGenesis::dispatch(DivCommand c) {
         unsigned short baseAddr=chanOffs[c.chan]|opOffs[orderedOps[c.value]];
         rWrite(baseAddr+ADDR_RS_AR,(op.ar&31)|(op.rs<<6));
       }
-      
       break;
     }
+    case DIV_CMD_FM_HARD_RESET:
+      chan[c.chan].hardReset=c.value;
+      break;
     case DIV_ALWAYS_SET_VOLUME:
       return 0;
       break;
diff --git a/src/engine/platform/genesis.h b/src/engine/platform/genesis.h
index 095744dfe..51d98d807 100644
--- a/src/engine/platform/genesis.h
+++ b/src/engine/platform/genesis.h
@@ -38,7 +38,7 @@ class DivPlatformGenesis: public DivDispatch {
       unsigned char freqH, freqL;
       int freq, baseFreq, pitch, note;
       unsigned char ins;
-      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta;
+      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, furnaceDac, inPorta, hardReset;
       int vol, outVol;
       unsigned char pan;
       Channel():
@@ -57,6 +57,7 @@ class DivPlatformGenesis: public DivDispatch {
         portaPause(false),
         furnaceDac(false),
         inPorta(false),
+        hardReset(false),
         vol(0),
         pan(3) {}
     };
diff --git a/src/engine/platform/tx81z.h b/src/engine/platform/tx81z.h
index b3d00e523..363d5c234 100644
--- a/src/engine/platform/tx81z.h
+++ b/src/engine/platform/tx81z.h
@@ -38,10 +38,30 @@ class DivPlatformTX81Z: public DivDispatch {
       int freq, baseFreq, pitch, note;
       unsigned char ins;
       signed char konCycles;
-      bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, portaPause, furnacePCM;
+      bool active, insChanged, freqChanged, keyOn, keyOff, inPorta, portaPause, furnacePCM, hardReset;
       int vol, outVol;
       unsigned char chVolL, chVolR;
-      Channel(): freqH(0), freqL(0), freq(0), baseFreq(0), pitch(0), note(0), ins(-1), active(false), insChanged(true), freqChanged(false), keyOn(false), keyOff(false), inPorta(false), portaPause(false), furnacePCM(false), vol(0), outVol(0), chVolL(127), chVolR(127) {}
+      Channel():
+        freqH(0),
+        freqL(0),
+        freq(0),
+        baseFreq(0),
+        pitch(0),
+        note(0),
+        ins(-1),
+        active(false),
+        insChanged(true),
+        freqChanged(false),
+        keyOn(false),
+        keyOff(false),
+        inPorta(false),
+        portaPause(false),
+        furnacePCM(false),
+        hardReset(false),
+        vol(0),
+        outVol(0),
+        chVolL(127),
+        chVolR(127) {}
     };
     Channel chan[8];
     struct QueuedWrite {
diff --git a/src/engine/platform/ym2610.h b/src/engine/platform/ym2610.h
index bc70144e6..2fd525b08 100644
--- a/src/engine/platform/ym2610.h
+++ b/src/engine/platform/ym2610.h
@@ -46,7 +46,7 @@ class DivPlatformYM2610: public DivDispatch {
       int freq, baseFreq, pitch, note;
       unsigned char ins, psgMode, autoEnvNum, autoEnvDen;
       signed char konCycles;
-      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, inPorta, furnacePCM;
+      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, inPorta, furnacePCM, hardReset;
       int vol, outVol;
       int sample;
       unsigned char pan;
@@ -70,6 +70,7 @@ class DivPlatformYM2610: public DivDispatch {
         portaPause(false),
         inPorta(false),
         furnacePCM(false),
+        hardReset(false),
         vol(0),
         outVol(15),
         sample(-1),
diff --git a/src/engine/platform/ym2610b.h b/src/engine/platform/ym2610b.h
index 85b9b4514..d6b616c50 100644
--- a/src/engine/platform/ym2610b.h
+++ b/src/engine/platform/ym2610b.h
@@ -38,7 +38,7 @@ class DivPlatformYM2610B: public DivDispatch {
       int freq, baseFreq, pitch, note;
       unsigned char ins, psgMode, autoEnvNum, autoEnvDen;
       signed char konCycles;
-      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, inPorta, furnacePCM;
+      bool active, insChanged, freqChanged, keyOn, keyOff, portaPause, inPorta, furnacePCM, hardReset;
       int vol, outVol;
       int sample;
       unsigned char pan;
@@ -62,6 +62,7 @@ class DivPlatformYM2610B: public DivDispatch {
         portaPause(false),
         inPorta(false),
         furnacePCM(false),
+        hardReset(false),
         vol(0),
         outVol(15),
         sample(-1),
diff --git a/src/engine/playback.cpp b/src/engine/playback.cpp
index 0118acc42..a9497d667 100644
--- a/src/engine/playback.cpp
+++ b/src/engine/playback.cpp
@@ -61,6 +61,7 @@ const char* cmdName[DIV_CMD_MAX]={
   "SAMPLE_BANK",
   "SAMPLE_POS",
 
+  "FM_HARD_RESET",
   "FM_LFO",
   "FM_LFO_WAVE",
   "FM_TL",
@@ -240,6 +241,23 @@ bool DivEngine::perSystemEffect(int ch, unsigned char effect, unsigned char effe
         case 0x20: // SN noise mode
           dispatchCmd(DivCommand(DIV_CMD_STD_NOISE_MODE,ch,effectVal));
           break;
+        case 0x30: // toggle hard-reset
+          dispatchCmd(DivCommand(DIV_CMD_FM_HARD_RESET,ch,effectVal));
+          break;
+        default:
+          return false;
+      }
+      break;
+    case DIV_SYSTEM_YM2151:
+    case DIV_SYSTEM_YM2610:
+    case DIV_SYSTEM_YM2610_EXT:
+    case DIV_SYSTEM_YM2610B:
+    case DIV_SYSTEM_YM2610B_EXT:
+    case DIV_SYSTEM_OPZ:
+      switch (effect) {
+        case 0x30: // toggle hard-reset
+          dispatchCmd(DivCommand(DIV_CMD_FM_HARD_RESET,ch,effectVal));
+          break;
         default:
           return false;
       }
@@ -340,6 +358,22 @@ bool DivEngine::perSystemEffect(int ch, unsigned char effect, unsigned char effe
         case 0x18: // drum mode toggle
           dispatchCmd(DivCommand(DIV_CMD_FM_EXTCH,ch,effectVal));
           break;
+        case 0x30: // toggle hard-reset
+          dispatchCmd(DivCommand(DIV_CMD_FM_HARD_RESET,ch,effectVal));
+          break;
+        default:
+          return false;
+      }
+      break;
+    case DIV_SYSTEM_OPLL:
+    case DIV_SYSTEM_VRC7:
+    case DIV_SYSTEM_OPL:
+    case DIV_SYSTEM_OPL2:
+    case DIV_SYSTEM_OPL3:
+      switch (effect) {
+        case 0x30: // toggle hard-reset
+          dispatchCmd(DivCommand(DIV_CMD_FM_HARD_RESET,ch,effectVal));
+          break;
         default:
           return false;
       }
diff --git a/src/engine/song.h b/src/engine/song.h
index 438c22143..75e5a03e9 100644
--- a/src/engine/song.h
+++ b/src/engine/song.h
@@ -143,12 +143,15 @@ struct DivSong {
   // - 9: v3.9
   //   - introduces Genesis system
   //   - introduces system number
+  //   - patterns now stored in current known format
   // - 7: ???
-  // - 5: BETA 3 (?)
+  // - 5: BETA 3
   //   - adds arpeggio tick
-  // - 3: BETA 2
+  // - 4: BETA 2
+  // - 3: BETA 1
   //   - possibly the first version that could save
   //   - basic format, no system number, 16 instruments, one speed, YMU759-only
+  //   - patterns were stored in a different format (chars instead of shorts)
   //   - if somebody manages to find a version 2 or even 1 module, please tell me as it will be worth more than a luxury vehicle
   unsigned short version;
   bool isDMF;