diff --git a/plugin/chassis.cpp b/plugin/chassis.cpp
index a8a7f00..3b9c4ae 100644
--- a/plugin/chassis.cpp
+++ b/plugin/chassis.cpp
@@ -18,8 +18,8 @@
 
 #include "chassis.hpp"
 
-#include "patches.hpp"
 #include "cpuboard.hpp"
+#include "patches.hpp"
 
 Assigner ic1;
 
@@ -67,16 +67,13 @@ void Chassis::noteOn(uint8_t note) {
 
     ic1.ram[0x4e] = 0x90;
     ic1.ram[0x3e] = note;
-
-
     ic1.noteOn();
 
-    for (uint8_t i=0x40; i<0x4f; i++) {
+    for (uint8_t i = 0x40; i < 0x4f; i++) {
         printf("%02x ", ic1.ram[i]);
     }
     printf("\n");
 
-
     s.keyon = true;
     for (i = 0; i < NUM_VOICES; i++) {
         vPtr++;
@@ -96,6 +93,15 @@ void Chassis::noteOn(uint8_t note) {
 }
 
 void Chassis::noteOff(uint8_t note) {
+    ic1.ram[0x4e] = 0x80;
+    ic1.ram[0x3e] = note;
+    ic1.noteOn();
+
+    for (uint8_t i = 0x40; i < 0x4f; i++) {
+        printf("%02x ", ic1.ram[i]);
+    }
+    printf("\n");
+
     s.keyon = false;
     for (uint32_t i = 0; i < NUM_VOICES; i++) {
         if (s.voice[i].note == note && !s.voice[i].isFree()) {
@@ -178,24 +184,23 @@ void Chassis::run(const float **, float **outputs, uint32_t frames, const MidiEv
     // highpass filter
 
     float tmp = s.hptmp;
-    float smp, flt=0;
+    float smp, flt = 0;
     float cut_tbl[4] = {0.91245, 0.97097, 1, 0.99088};
     float cut = cut_tbl[(s.patchRam.switch2 & 0x18) >> 3];
     float gain_tbl[4] = {-1, -1, 0, 4};
     float gain = gain_tbl[(s.patchRam.switch2 & 0x18) >> 3];
 
-   // printf("hp= %02x\n", (s.patchRam.switch2 & 0x18)>>3);
-    
+    // printf("hp= %02x\n", (s.patchRam.switch2 & 0x18)>>3);
+
     for (uint32_t i = 0; i < frames; i++) {
         smp = outputs[0][i];
-        
+
         flt = ((tmp - smp) * cut) + smp;
         tmp = flt;
         outputs[0][i] = ((flt * gain) + smp);
-    }   
+    }
     s.hptmp = flt;
 
-
     // copy left to right
     memmove(outputs[1], outputs[0], sizeof(float) * frames);
     // outputs[1][1]=1;
diff --git a/plugin/cpuboard.cpp b/plugin/cpuboard.cpp
index e49adce..ccd712f 100644
--- a/plugin/cpuboard.cpp
+++ b/plugin/cpuboard.cpp
@@ -9,8 +9,6 @@ void Assigner::noteOn() {
 
     // note that RAM addresses normally set to 0xff40 are reduced to 0x0040
     
-    printf("starting noteon %02x %02x\n", ram[0x4e], ram[0x3e]);
-
     // 06ca
     a = ram[0x3e];  // first byte is note value
     c = 0x40;   // fake velocity
@@ -35,7 +33,6 @@ void Assigner::noteOn() {
     // otherwise handle note on
     // 06e8 lxi hl,$0008; ldax (a+hl) for table of bits
     a = 1 << a;
-    printf("A=%02x\n", a);
     c = a;
     hl = 0x0040;        // note bit flags
     a = ram[hl + b];    // byte pointed to by upper part
@@ -46,7 +43,6 @@ void Assigner::noteOn() {
     return;
 
     h06f9:    // note off
-    printf("went to note off\n");
 
     a = 0xff ^ (1 << a);
     c = a;