diff --git a/demos/Coconut_Mall.fur b/demos/Coconut_Mall.fur
new file mode 100644
index 000000000..471fcbec3
Binary files /dev/null and b/demos/Coconut_Mall.fur differ
diff --git a/papers/format.md b/papers/format.md
index ade5715de..dc052d038 100644
--- a/papers/format.md
+++ b/papers/format.md
@@ -119,13 +119,13 @@ size | description
      |   - 0x06: NES - 5 channels
      |   - 0x07: C64 (8580) - 3 channels
      |   - 0x08: Arcade (YM2151+SegaPCM) - 13 channels (compound!)
-     |   - 0x09: Neo Geo (YM2610) - 13 channels
+     |   - 0x09: Neo Geo CD (YM2610) - 13 channels
      |   - bit 6 enables alternate mode:
      |     - 0x42: Genesis extended - 13 channels
      |     - 0x43: SMS (SN76489) + OPLL (YM2413) - 13 channels (compound!)
      |     - 0x46: NES + VRC7 - 11 channels (compound!)
      |     - 0x47: C64 (6581) - 3 channels
-     |     - 0x49: Neo Geo extended - 16 channels
+     |     - 0x49: Neo Geo CD extended - 16 channels
      |   - bit 7 for non-DefleMask chips:
      |     - 0x80: AY-3-8910 - 3 channels
      |     - 0x81: Amiga - 4 channels
@@ -164,10 +164,13 @@ size | description
      |     - 0xa2: OPL drums (YM3526) - 11 channels
      |     - 0xa3: OPL2 drums (YM3812) - 11 channels
      |     - 0xa4: OPL3 drums (YMF262) - 20 channels
-     |     - 0xa5: OPL3 4-op (YMF262) - 12 channels
-     |     - 0xa6: OPL3 4-op + drums (YMF262) - 14 channels
+     |     - 0xa5: Neo Geo (YM2610) - 14 channels
+     |     - 0xa6: Neo Geo extended (YM2610) - 17 channels
      |     - 0xa7: OPLL drums (YM2413) - 11 channels
      |     - 0xa8: Atari Lynx - 4 channels
+     |     - 0xa9: SegaPCM (for Deflemask Compatibility) - 5 channels
+     |     - 0xaa: MSM6295 - 4 channels
+     |     - 0xab: MSM6258 - 1 channel
      |     - 0xde: YM2610B extended - 19 channels
      |     - 0xe0: QSound - 19 channels
      | - (compound!) means that the system is composed of two or more chips,
diff --git a/src/audio/rtmidi.h b/src/audio/rtmidi.h
index 5fbba78fe..0803c3fcd 100644
--- a/src/audio/rtmidi.h
+++ b/src/audio/rtmidi.h
@@ -17,4 +17,13 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
-#include "../../extern/rtmidi/RtMidi.h"
\ No newline at end of file
+#include "../../extern/rtmidi/RtMidi.h"
+#include "taAudio.h"
+
+class TAMidiInRtMidi: public TAMidiIn {
+
+};
+
+class TAMidiOutRtMidi: public TAMidiOut {
+
+};
\ No newline at end of file
diff --git a/src/audio/taAudio.h b/src/audio/taAudio.h
index 10712bc03..1f8c32305 100644
--- a/src/audio/taAudio.h
+++ b/src/audio/taAudio.h
@@ -20,6 +20,7 @@
 #ifndef _TAAUDIO_H
 #define _TAAUDIO_H
 #include "../ta-utils.h"
+#include <queue>
 #include <vector>
 
 struct SampleRateChangeEvent {
@@ -116,14 +117,24 @@ struct TAMidiMessage {
 
   void submitSysEx(std::vector<unsigned char> data);
   void done();
+
+  TAMidiMessage():
+    type(0),
+    sysExData(NULL),
+    sysExLen(0) {
+    memset(&data,0,sizeof(data));
+  }
 };
 
 class TAMidiIn {
+  std::queue<TAMidiMessage> queue;
   public:
+    virtual bool gather();
     bool next(TAMidiMessage& where);
 };
 
 class TAMidiOut {
+  std::queue<TAMidiMessage> queue;
   public:
     bool send(TAMidiMessage& what);
 };
@@ -140,8 +151,8 @@ class TAAudio {
     void (*sampleRateChanged)(SampleRateChangeEvent);
     void (*bufferSizeChanged)(BufferSizeChangeEvent);
   public:
-    std::vector<TAMidiIn*> midiIn;
-    std::vector<TAMidiOut*> midiOut;
+    TAMidiIn* midiIn;
+    TAMidiOut* midiOut;
     void setSampleRateChangeCallback(void (*callback)(SampleRateChangeEvent));
     void setBufferSizeChangeCallback(void (*callback)(BufferSizeChangeEvent));
 
diff --git a/src/engine/platform/genesis.cpp b/src/engine/platform/genesis.cpp
index 6f666306b..367bace65 100644
--- a/src/engine/platform/genesis.cpp
+++ b/src/engine/platform/genesis.cpp
@@ -133,17 +133,11 @@ void DivPlatformGenesis::acquire_nuked(short* bufL, short* bufR, size_t start, s
       //OPN2_Write(&fm,0,0);
       }
     
-    psgClocks+=psg.rate;
-    while (psgClocks>=rate) {
-      psgOut=(psg.acquireOne()*3)>>3;
-      psgClocks-=rate;
-    }
-
-    os[0]=(os[0]<<5)+psgOut;
+    os[0]=(os[0]<<5);
     if (os[0]<-32768) os[0]=-32768;
     if (os[0]>32767) os[0]=32767;
 
-    os[1]=(os[1]<<5)+psgOut;
+    os[1]=(os[1]<<5);
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
@@ -197,17 +191,9 @@ void DivPlatformGenesis::acquire_ymfm(short* bufL, short* bufR, size_t start, si
     os[1]=out_ymfm.data[1];
     //OPN2_Write(&fm,0,0);
     
-    psgClocks+=psg.rate;
-    while (psgClocks>=rate) {
-      psgOut=(psg.acquireOne()*3)>>3;
-      psgClocks-=rate;
-    }
-
-    os[0]=os[0]+psgOut;
     if (os[0]<-32768) os[0]=-32768;
     if (os[0]>32767) os[0]=32767;
 
-    os[1]=os[1]+psgOut;
     if (os[1]<-32768) os[1]=-32768;
     if (os[1]>32767) os[1]=32767;
   
@@ -391,13 +377,6 @@ void DivPlatformGenesis::tick() {
       chan[i].keyOn=false;
     }
   }
-
-  psg.tick();
-  
-  for (DivRegWrite& i: psg.getRegisterWrites()) {
-    if (dumpWrites) addWrite(i.addr,i.val);
-  }
-  psg.getRegisterWrites().clear();
 }
 
 int DivPlatformGenesis::octave(int freq) {
@@ -442,10 +421,6 @@ int DivPlatformGenesis::toFreq(int freq) {
 }
 
 void DivPlatformGenesis::muteChannel(int ch, bool mute) {
-  if (ch>5) {
-    psg.muteChannel(ch-6,mute);
-    return;
-  }
   isMuted[ch]=mute;
   for (int j=0; j<4; j++) {
     unsigned short baseAddr=chanOffs[ch]|opOffs[j];
@@ -464,10 +439,6 @@ void DivPlatformGenesis::muteChannel(int ch, bool mute) {
 }
 
 int DivPlatformGenesis::dispatch(DivCommand c) {
-  if (c.chan>5) {
-    c.chan-=6;
-    return psg.dispatch(c);
-  }
   switch (c.cmd) {
     case DIV_CMD_NOTE_ON: {
       DivInstrument* ins=parent->getIns(chan[c.chan].ins);
@@ -786,16 +757,13 @@ void DivPlatformGenesis::forceIns() {
     rWrite(0x2b,0x80);
   }
   immWrite(0x22,lfoValue);
-  psg.forceIns();
 }
 
 void DivPlatformGenesis::toggleRegisterDump(bool enable) {
   DivDispatch::toggleRegisterDump(enable);
-  psg.toggleRegisterDump(enable);
 }
 
 void* DivPlatformGenesis::getChanState(int ch) {
-  if (ch>5) return psg.getChanState(ch-6);
   return &chan[ch];
 }
 
@@ -844,12 +812,6 @@ void DivPlatformGenesis::reset() {
   immWrite(0x22,lfoValue);
   
   delay=0;
-  
-  // PSG
-  psg.reset();
-  psg.getRegisterWrites().clear();
-  psgClocks=0;
-  psgOut=0;
 }
 
 bool DivPlatformGenesis::isStereo() {
@@ -865,17 +827,14 @@ bool DivPlatformGenesis::keyOffAffectsPorta(int ch) {
 }
 
 void DivPlatformGenesis::notifyInsChange(int ins) {
-  for (int i=0; i<10; i++) {
-    if (i>5) {
-      psg.notifyInsChange(ins);
-    } else if (chan[i].ins==ins) {
+  for (int i=0; i<6; i++) {
+    if (chan[i].ins==ins) {
       chan[i].insChanged=true;
     }
   }
 }
 
 void DivPlatformGenesis::notifyInsDeletion(void* ins) {
-  psg.notifyInsDeletion(ins);
 }
 
 void DivPlatformGenesis::poke(unsigned int addr, unsigned short val) {
@@ -904,7 +863,6 @@ void DivPlatformGenesis::setFlags(unsigned int flags) {
   } else {
     chipClock=COLOR_NTSC*15.0/7.0;
   }
-  psg.setFlags(flags==1);
   ladder=flags&0x80000000;
   OPN2_SetChipType(ladder?ym3438_mode_ym2612:0);
   if (useYMFM) {
@@ -929,7 +887,6 @@ int DivPlatformGenesis::init(DivEngine* p, int channels, int sugRate, unsigned i
     isMuted[i]=false;
   }
   fm_ymfm=NULL;
-  psg.init(p,4,sugRate,flags==1);
   setFlags(flags);
 
   reset();
@@ -938,7 +895,6 @@ int DivPlatformGenesis::init(DivEngine* p, int channels, int sugRate, unsigned i
 
 void DivPlatformGenesis::quit() {
   if (fm_ymfm!=NULL) delete fm_ymfm;
-  psg.quit();
 }
 
 DivPlatformGenesis::~DivPlatformGenesis() {
diff --git a/src/engine/platform/genesis.h b/src/engine/platform/genesis.h
index 717c6c3dc..cd7b0396c 100644
--- a/src/engine/platform/genesis.h
+++ b/src/engine/platform/genesis.h
@@ -70,9 +70,6 @@ class DivPlatformGenesis: public DivDispatch {
     };
     std::queue<QueuedWrite> writes;
     ym3438_t fm;
-    DivPlatformSMS psg;
-    int psgClocks;
-    int psgOut;
     int delay;
     unsigned char lastBusy;
 
diff --git a/src/engine/platform/opll.cpp b/src/engine/platform/opll.cpp
index f49f48731..c6a8bf4de 100644
--- a/src/engine/platform/opll.cpp
+++ b/src/engine/platform/opll.cpp
@@ -133,7 +133,9 @@ void DivPlatformOPLL::tick() {
 
     if (chan[i].std.hadVol) {
       chan[i].outVol=(chan[i].vol*MIN(15,chan[i].std.vol))/15;
-      rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+      if (i<9) {
+        rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+      }
     }
 
     if (chan[i].std.hadArp) {
@@ -159,15 +161,15 @@ void DivPlatformOPLL::tick() {
       }
       if (chan[i].std.hadFb) {
         chan[i].state.fb=chan[i].std.fb;
-        rWrite(0x03,(chan[i].state.op[0].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
+        rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
       }
       if (chan[i].std.hadFms) {
         chan[i].state.fms=chan[i].std.fms;
-        rWrite(0x03,(chan[i].state.op[0].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
+        rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
       }
       if (chan[i].std.hadAms) {
         chan[i].state.ams=chan[i].std.ams;
-        rWrite(0x03,(chan[i].state.op[0].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
+        rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
       }
 
       for (int j=0; j<2; j++) {
@@ -201,9 +203,11 @@ void DivPlatformOPLL::tick() {
         if (m.hadTl) {
           op.tl=((j==1)?15:63)-m.tl;
           if (j==1) {
-            rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+            if (i<9) {
+              rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+            }
           } else {
-            rWrite(0x02,(chan[i].state.op[1].ksl<<6)|(op.tl&63));
+            rWrite(0x02,(chan[i].state.op[0].ksl<<6)|(op.tl&63));
           }
         }
 
@@ -214,9 +218,9 @@ void DivPlatformOPLL::tick() {
         if (m.hadKsl) {
           op.ksl=m.ksl;
           if (j==1) {
-            rWrite(0x02,(op.ksl<<6)|(chan[i].state.op[0].tl&63));
+            rWrite(0x02,(chan[i].state.op[0].ksl<<6)|(chan[i].state.op[0].tl&63));
           } else {
-            rWrite(0x03,(chan[i].state.op[0].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
+            rWrite(0x03,(chan[i].state.op[1].ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
           }
         }
         if (m.hadKsr) {
@@ -238,7 +242,9 @@ void DivPlatformOPLL::tick() {
         drumState&=~(0x10>>(chan[i].note%12));
         immWrite(0x0e,0x20|drumState);
       } else {
-        immWrite(0x20+i,(chan[i].freqH)/*|(chan[i].state.alg?0x20:0)*/);
+        if (i<9) {
+          immWrite(0x20+i,(chan[i].freqH)|(chan[i].state.alg?0x20:0));
+        }
       }
       //chan[i].keyOn=false;
       chan[i].keyOff=false;
@@ -257,21 +263,23 @@ void DivPlatformOPLL::tick() {
       chan[i].freq=parent->calcFreq(chan[i].baseFreq,chan[i].pitch,false,octave(chan[i].baseFreq));
       if (chan[i].freq>262143) chan[i].freq=262143;
       int freqt=toFreq(chan[i].freq);
-      chan[i].freqH=freqt>>8;
       chan[i].freqL=freqt&0xff;
       if (i>=6 && properDrums) {
         immWrite(0x10+drumSlot[i],freqt&0xff);
         immWrite(0x20+drumSlot[i],freqt>>8);
       } else if (i<6 || !drums) {
-        immWrite(0x10+i,freqt&0xff);
+        if (i<9) {
+          immWrite(0x10+i,freqt&0xff);
+        }
       }
+      chan[i].freqH=freqt>>8;
     }
     if (chan[i].keyOn && i>=6 && properDrums) {
       if (!isMuted[i]) {
         drumState|=(0x10>>(i-6));
         immWrite(0x0e,0x20|drumState);
       }
-        chan[i].keyOn=false;
+      chan[i].keyOn=false;
     } else if (chan[i].keyOn && i>=6 && drums) {
       //printf("%d\n",chan[i].note%12);
       drumState|=(0x10>>(chan[i].note%12));
@@ -279,7 +287,11 @@ void DivPlatformOPLL::tick() {
       chan[i].keyOn=false;
     } else if ((chan[i].keyOn || chan[i].freqChanged) && i<9) {
       //immWrite(0x28,0xf0|konOffs[i]);
-      immWrite(0x20+i,(chan[i].freqH)|(chan[i].active<<4)|(chan[i].state.alg?0x20:0));
+      if (!(i>=6 && properDrums)) {
+        if (i<9) {
+          immWrite(0x20+i,(chan[i].freqH)|(chan[i].active<<4)|(chan[i].state.alg?0x20:0));
+        }
+      }
       chan[i].keyOn=false;
     }
     chan[i].freqChanged=false;
@@ -381,8 +393,8 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
           DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
           rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
           rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
-          rWrite(0x02,(car.ksl<<6)|(mod.tl&63));
-          rWrite(0x03,(mod.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
+          rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
+          rWrite(0x03,(car.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
           rWrite(0x04,(mod.ar<<4)|(mod.dr));
           rWrite(0x05,(car.ar<<4)|(car.dr));
           rWrite(0x06,(mod.sl<<4)|(mod.rr));
@@ -410,7 +422,9 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
               immWrite(0x0e,0);
             }
           }
-          rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+          if (c.chan<9) {
+            rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+          }
         }
       }
 
@@ -477,9 +491,10 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
         rWrite(0x37,drumVol[1]|(drumVol[4]<<4));
         rWrite(0x38,drumVol[3]|(drumVol[2]<<4));
         break;
-      }
-      if (c.chan<6 || !drums) {
-        rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+      } else if (c.chan<6 || !drums) {
+        if (c.chan<9) {
+          rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+        }
       }
       break;
     }
@@ -541,10 +556,10 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
     }
     case DIV_CMD_FM_FB: {
       if (c.chan>=9 && !properDrums) return 0;
-      DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
-      //DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
+      //DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
+      DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
       chan[c.chan].state.fb=c.value&7;
-      rWrite(0x03,(mod.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
+      rWrite(0x03,(car.ksl<<6)|((chan[c.chan].state.fms&1)<<4)|((chan[c.chan].state.ams&1)<<3)|chan[c.chan].state.fb);
       break;
     }
     
@@ -565,13 +580,15 @@ int DivPlatformOPLL::dispatch(DivCommand c) {
       if (c.chan>=9 && !properDrums) return 0;
       if (c.value==0) {
         DivInstrumentFM::Operator& mod=chan[c.chan].state.op[0];
-        DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
+        //DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
         mod.tl=c.value2&63;
-        rWrite(0x02,(car.ksl<<6)|(mod.tl&63));
+        rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
       } else {
         DivInstrumentFM::Operator& car=chan[c.chan].state.op[1];
         car.tl=c.value2&15;
-        rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+        if (c.chan<9) {
+          rWrite(0x30+c.chan,((15-(chan[c.chan].outVol*(15-chan[c.chan].state.op[1].tl))/15)&15)|(chan[c.chan].state.opllPreset<<4));
+        }
       }
       break;
     }
@@ -632,14 +649,16 @@ void DivPlatformOPLL::forceIns() {
       DivInstrumentFM::Operator& car=chan[i].state.op[1];
       rWrite(0x00,(mod.am<<7)|(mod.vib<<6)|((mod.ssgEnv&8)<<2)|(mod.ksr<<4)|(mod.mult));
       rWrite(0x01,(car.am<<7)|(car.vib<<6)|((car.ssgEnv&8)<<2)|(car.ksr<<4)|(car.mult));
-      rWrite(0x02,(car.ksl<<6)|(mod.tl&63));
-      rWrite(0x03,(mod.ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
+      rWrite(0x02,(mod.ksl<<6)|(mod.tl&63));
+      rWrite(0x03,(car.ksl<<6)|((chan[i].state.fms&1)<<4)|((chan[i].state.ams&1)<<3)|chan[i].state.fb);
       rWrite(0x04,(mod.ar<<4)|(mod.dr));
       rWrite(0x05,(car.ar<<4)|(car.dr));
       rWrite(0x06,(mod.sl<<4)|(mod.rr));
       rWrite(0x07,(car.sl<<4)|(car.rr));
     }
-    rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+    if (i<9) {
+      rWrite(0x30+i,((15-(chan[i].outVol*(15-chan[i].state.op[1].tl))/15)&15)|(chan[i].state.opllPreset<<4));
+    }
     if (!(i>=6 && properDrums)) {
       if (chan[i].active) {
         chan[i].keyOn=true;
diff --git a/src/engine/platform/sound/pce_psg.cpp b/src/engine/platform/sound/pce_psg.cpp
index ed71e0fd2..f9c1ee099 100644
--- a/src/engine/platform/sound/pce_psg.cpp
+++ b/src/engine/platform/sound/pce_psg.cpp
@@ -157,12 +157,6 @@ void PCE_PSG::RecalcUOFunc(int chnum)
 
  //printf("UO Update: %d, %02x\n", chnum, ch->control);
 
- // what is this?
- if (lfoctrl&3 && chnum==1) {
-   ch->UpdateOutput = &PCE_PSG::UpdateOutput_Off;
-   return;
- }
-
  if((revision != REVISION_HUC6280 && !(ch->control & 0xC0)) || (revision == REVISION_HUC6280 && !(ch->control & 0x80)))
   ch->UpdateOutput = &PCE_PSG::UpdateOutput_Off;
  else if(ch->noisectrl & ch->control & 0x80)
diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 0aeeb129e..ef0e0d86f 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -1540,6 +1540,7 @@ const char* aboutLine[]={
   "NikonTeen",
   "SuperJet Spade",
   "TheDuccinator",
+  "TheRealHedgehogSonic",
   "tildearrow",
   "Ultraprogramer",
   "",
@@ -5439,7 +5440,11 @@ void FurnaceGUI::parseKeybinds() {
 
 void FurnaceGUI::applyUISettings() {
   ImGuiStyle sty;
-  ImGui::StyleColorsDark(&sty);
+  if (settings.guiColorsBase) {
+    ImGui::StyleColorsLight(&sty);
+  } else {
+    ImGui::StyleColorsDark(&sty);
+  }
 
   if (settings.dpiScale>=0.5f) dpiScale=settings.dpiScale;
 
@@ -5540,8 +5545,14 @@ void FurnaceGUI::applyUISettings() {
   primaryHover.w=primaryActive.w;
   primary.w=primaryActive.w;
   ImGui::ColorConvertRGBtoHSV(primaryActive.x,primaryActive.y,primaryActive.z,hue,sat,val);
-  ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,primaryHover.x,primaryHover.y,primaryHover.z);
-  ImGui::ColorConvertHSVtoRGB(hue,sat*0.8,val*0.35,primary.x,primary.y,primary.z);
+  if (settings.guiColorsBase) {
+    primary=primaryActive;
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,primaryHover.x,primaryHover.y,primaryHover.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,primaryActive.x,primaryActive.y,primaryActive.z);
+  } else {
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,primaryHover.x,primaryHover.y,primaryHover.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.8,val*0.35,primary.x,primary.y,primary.z);
+  }
 
   ImVec4 secondaryActive=uiColors[GUI_COLOR_ACCENT_SECONDARY];
   ImVec4 secondaryHover, secondary, secondarySemiActive;
@@ -5549,9 +5560,16 @@ void FurnaceGUI::applyUISettings() {
   secondaryHover.w=secondaryActive.w;
   secondary.w=secondaryActive.w;
   ImGui::ColorConvertRGBtoHSV(secondaryActive.x,secondaryActive.y,secondaryActive.z,hue,sat,val);
-  ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.75,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
-  ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,secondaryHover.x,secondaryHover.y,secondaryHover.z);
-  ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.25,secondary.x,secondary.y,secondary.z);
+  if (settings.guiColorsBase) {
+    secondary=secondaryActive;
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.7,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.9,secondaryHover.x,secondaryHover.y,secondaryHover.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat,val*0.5,secondaryActive.x,secondaryActive.y,secondaryActive.z);
+  } else {
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.75,secondarySemiActive.x,secondarySemiActive.y,secondarySemiActive.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.5,secondaryHover.x,secondaryHover.y,secondaryHover.z);
+    ImGui::ColorConvertHSVtoRGB(hue,sat*0.9,val*0.25,secondary.x,secondary.y,secondary.z);
+  }
 
 
   sty.Colors[ImGuiCol_WindowBg]=uiColors[GUI_COLOR_FRAME_BACKGROUND];
diff --git a/src/gui/gui.h b/src/gui/gui.h
index e41d71450..dee44f59c 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -493,6 +493,7 @@ class FurnaceGUI {
     int statusDisplay;
     float dpiScale;
     int viewPrevPattern;
+    int guiColorsBase;
     unsigned int maxUndoSteps;
     String mainFontPath;
     String patFontPath;
@@ -533,6 +534,7 @@ class FurnaceGUI {
       statusDisplay(0),
       dpiScale(0.0f),
       viewPrevPattern(1),
+      guiColorsBase(0),
       maxUndoSteps(100),
       mainFontPath(""),
       patFontPath(""),
diff --git a/src/gui/insEdit.cpp b/src/gui/insEdit.cpp
index 408c3c150..3f5ac067d 100644
--- a/src/gui/insEdit.cpp
+++ b/src/gui/insEdit.cpp
@@ -863,6 +863,7 @@ void FurnaceGUI::drawInsEdit() {
             bool willDisplayOps=true;
             if (ins->type==DIV_INS_OPLL && ins->fm.opllPreset!=0) willDisplayOps=false;
             if (!willDisplayOps && ins->type==DIV_INS_OPLL) {
+              ins->fm.op[1].tl&=15;
               P(ImGui::SliderScalar("Volume##TL",ImGuiDataType_U8,&ins->fm.op[1].tl,&_FIFTEEN,&_ZERO)); rightClickable
             }
             if (willDisplayOps) if (ImGui::BeginTable("FMOperators",2,ImGuiTableFlags_SizingStretchSame)) {
@@ -917,6 +918,7 @@ void FurnaceGUI::drawInsEdit() {
                   ImGui::TableNextRow();
                   ImGui::TableNextColumn();
                   ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+                  op.ar&=maxArDr;
                   P(ImGui::SliderScalar("##AR",ImGuiDataType_U8,&op.ar,&maxArDr,&_ZERO)); rightClickable
                   ImGui::TableNextColumn();
                   ImGui::Text("%s",FM_NAME(FM_AR));
@@ -924,6 +926,7 @@ void FurnaceGUI::drawInsEdit() {
                   ImGui::TableNextRow();
                   ImGui::TableNextColumn();
                   ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+                  op.dr&=maxArDr;
                   P(ImGui::SliderScalar("##DR",ImGuiDataType_U8,&op.dr,&maxArDr,&_ZERO)); rightClickable
                   ImGui::TableNextColumn();
                   ImGui::Text("%s",FM_NAME(FM_DR));
@@ -954,6 +957,7 @@ void FurnaceGUI::drawInsEdit() {
                   ImGui::TableNextRow();
                   ImGui::TableNextColumn();
                   ImGui::SetNextItemWidth(ImGui::GetContentRegionAvail().x);
+                  op.tl&=maxTl;
                   P(ImGui::SliderScalar("##TL",ImGuiDataType_U8,&op.tl,&maxTl,&_ZERO)); rightClickable
                   ImGui::TableNextColumn();
                   ImGui::Text("%s",FM_NAME(FM_TL));
@@ -1280,6 +1284,9 @@ void FurnaceGUI::drawInsEdit() {
           if (ins->type==DIV_INS_TIA || ins->type==DIV_INS_PCE || ins->type==DIV_INS_AMIGA) {
             dutyMax=0;
           }
+          if (ins->type==DIV_INS_OPLL || ins->type==DIV_INS_OPL) {
+            dutyMax=0;
+          }
           bool dutyIsRel=(ins->type==DIV_INS_C64 && !ins->c64.dutyIsAbs);
 
           int waveMax=(ins->type==DIV_INS_AY || ins->type==DIV_INS_AY8930)?3:63;
@@ -1291,7 +1298,7 @@ void FurnaceGUI::drawInsEdit() {
           if (ins->type==DIV_INS_TIA) waveMax=15;
           if (ins->type==DIV_INS_C64) waveMax=4;
           if (ins->type==DIV_INS_SAA1099) waveMax=2;
-          if (ins->type==DIV_INS_FM) waveMax=0;
+          if (ins->type==DIV_INS_FM || ins->type==DIV_INS_OPLL || ins->type==DIV_INS_OPL || ins->type==DIV_INS_OPZ) waveMax=0;
           if (ins->type==DIV_INS_MIKEY) waveMax=0;
 
           const char** waveNames=ayShapeBits;
@@ -1311,9 +1318,9 @@ void FurnaceGUI::drawInsEdit() {
             if (volMax>0) {
               NORMAL_MACRO(ins->std.volMacro,ins->std.volMacroLen,ins->std.volMacroLoop,ins->std.volMacroRel,volMin,volMax,"vol",volumeLabel,160,ins->std.volMacroOpen,false,NULL,false,NULL,0,0,0,NULL,uiColors[GUI_COLOR_MACRO_VOLUME],mmlString[0],volMin,volMax,NULL,false);
             }
-            NORMAL_MACRO(ins->std.arpMacro,ins->std.arpMacroLen,ins->std.arpMacroLoop,ins->std.arpMacroRel,arpMacroScroll,arpMacroScroll+24,"arp","Arpeggio",160,ins->std.arpMacroOpen,false,NULL,true,&arpMacroScroll,(arpMode?0:-80),0,0,&ins->std.arpMacroMode,uiColors[GUI_COLOR_MACRO_PITCH],mmlString[1],-92,94,(ins->std.arpMacroMode?(&macroHoverNote):NULL),true);
+            NORMAL_MACRO(ins->std.arpMacro,ins->std.arpMacroLen,ins->std.arpMacroLoop,ins->std.arpMacroRel,arpMacroScroll,arpMacroScroll+24,"arp","Arpeggio",160,ins->std.arpMacroOpen,false,NULL,true,&arpMacroScroll,(arpMode?-60:-80),0,0,&ins->std.arpMacroMode,uiColors[GUI_COLOR_MACRO_PITCH],mmlString[1],-92,94,(ins->std.arpMacroMode?(&macroHoverNote):NULL),true);
             if (dutyMax>0) {
-              if (ins->type == DIV_INS_MIKEY) {
+              if (ins->type==DIV_INS_MIKEY) {
                 NORMAL_MACRO(ins->std.dutyMacro,ins->std.dutyMacroLen,ins->std.dutyMacroLoop,ins->std.dutyMacroRel,0,dutyMax,"duty",dutyLabel,160,ins->std.dutyMacroOpen,true,mikeyFeedbackBits,false,NULL,0,0,0,NULL,uiColors[GUI_COLOR_MACRO_OTHER],mmlString[2],0,dutyMax,NULL,false);
               }
               else {
diff --git a/src/gui/pattern.cpp b/src/gui/pattern.cpp
index 7d9eb43ce..3d2f15cb8 100644
--- a/src/gui/pattern.cpp
+++ b/src/gui/pattern.cpp
@@ -448,9 +448,15 @@ void FurnaceGUI::drawPattern() {
           keyHit[i]=0.2;
           e->keyHit[i]=false;
         }
-        chanHead.x*=0.25+keyHit[i]; chanHead.y*=0.25+keyHit[i]; chanHead.z*=0.25+keyHit[i];
-        chanHeadActive.x*=0.8; chanHeadActive.y*=0.8; chanHeadActive.z*=0.8;
-        chanHeadHover.x*=0.4+keyHit[i]; chanHeadHover.y*=0.4+keyHit[i]; chanHeadHover.z*=0.4+keyHit[i];
+        if (settings.guiColorsBase) {
+          chanHead.x*=1.0-keyHit[i]; chanHead.y*=1.0-keyHit[i]; chanHead.z*=1.0-keyHit[i];
+          chanHeadActive.x*=0.5; chanHeadActive.y*=0.5; chanHeadActive.z*=0.5;
+          chanHeadHover.x*=0.9-keyHit[i]; chanHeadHover.y*=0.9-keyHit[i]; chanHeadHover.z*=0.9-keyHit[i];
+        } else {
+          chanHead.x*=0.25+keyHit[i]; chanHead.y*=0.25+keyHit[i]; chanHead.z*=0.25+keyHit[i];
+          chanHeadActive.x*=0.8; chanHeadActive.y*=0.8; chanHeadActive.z*=0.8;
+          chanHeadHover.x*=0.4+keyHit[i]; chanHeadHover.y*=0.4+keyHit[i]; chanHeadHover.z*=0.4+keyHit[i];
+        }
         keyHit[i]-=0.02*60.0*ImGui::GetIO().DeltaTime;
         if (keyHit[i]<0) keyHit[i]=0;
         ImGui::PushStyleColor(ImGuiCol_Header,chanHead);
diff --git a/src/gui/settings.cpp b/src/gui/settings.cpp
index 136e95122..e40d47a13 100644
--- a/src/gui/settings.cpp
+++ b/src/gui/settings.cpp
@@ -425,6 +425,13 @@ void FurnaceGUI::drawSettings() {
 
         if (ImGui::TreeNode("Color scheme")) {
           if (ImGui::TreeNode("General")) {
+            ImGui::Text("Color scheme type:");
+            if (ImGui::RadioButton("Dark##gcb0",settings.guiColorsBase==0)) {
+              settings.guiColorsBase=0;
+            }
+            if (ImGui::RadioButton("Light##gcb1",settings.guiColorsBase==1)) {
+              settings.guiColorsBase=1;
+            }
             UI_COLOR_CONFIG(GUI_COLOR_BACKGROUND,"Background");
             UI_COLOR_CONFIG(GUI_COLOR_FRAME_BACKGROUND,"Window background");
             UI_COLOR_CONFIG(GUI_COLOR_MODAL_BACKDROP,"Modal backdrop");
@@ -856,6 +863,7 @@ void FurnaceGUI::syncSettings() {
   settings.statusDisplay=e->getConfInt("statusDisplay",0);
   settings.dpiScale=e->getConfFloat("dpiScale",0.0f);
   settings.viewPrevPattern=e->getConfInt("viewPrevPattern",1);
+  settings.guiColorsBase=e->getConfInt("guiColorsBase",0);
 
   // keybinds
   LOAD_KEYBIND(GUI_ACTION_OPEN,FURKMOD_CMD|SDLK_o);
@@ -1051,6 +1059,7 @@ void FurnaceGUI::commitSettings() {
   e->setConf("statusDisplay",settings.statusDisplay);
   e->setConf("dpiScale",settings.dpiScale);
   e->setConf("viewPrevPattern",settings.viewPrevPattern);
+  e->setConf("guiColorsBase",settings.guiColorsBase);
 
   PUT_UI_COLOR(GUI_COLOR_BACKGROUND);
   PUT_UI_COLOR(GUI_COLOR_FRAME_BACKGROUND);