diff --git a/.gitignore b/.gitignore
index 62c5120..6f289d8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -41,3 +41,6 @@ MiniDexed*
 sdcard
 *.zip
 *.img
+
+# Visual Studio artefacts
+.vs
diff --git a/build.sh b/build.sh
index 271501a..ae3e928 100755
--- a/build.sh
+++ b/build.sh
@@ -3,6 +3,7 @@
 set -e 
 set -x
 
+echo "Clean: ${CLEAN}"
 if [ -z "${RPI}" ] ; then
   echo "\$RPI missing, exting"
   exit 1
@@ -22,19 +23,27 @@ fi
 
 # Build circle-stdlib library
 cd circle-stdlib/
+if [ ! -z "${CLEAN}" ] ; then
 make mrproper || true
+fi
 ./configure -r ${RPI} --prefix "${TOOLCHAIN_PREFIX}" ${OPTIONS} -o KERNEL_MAX_SIZE=0x400000
 make -j
 
 # Build additional libraries
 cd libs/circle/addon/display/
+if [ ! -z "${CLEAN}" ] ; then
 make clean || true
+fi
 make -j
 cd ../sensor/
+if [ ! -z "${CLEAN}" ] ; then
 make clean || true
+fi
 make -j
 cd ../Properties/
+if [ ! -z "${CLEAN}" ] ; then
 make clean || true
+fi
 make -j
 cd ../../../..
 
@@ -42,7 +51,9 @@ cd ..
 
 # Build MiniDexed
 cd src
+if [ ! -z "${CLEAN}" ] ; then
 make clean || true
+fi
 make -j
 ls *.img
 cd ..
diff --git a/rebuild.sh b/rebuild.sh
new file mode 100644
index 0000000..99358dd
--- /dev/null
+++ b/rebuild.sh
@@ -0,0 +1,42 @@
+export RPI=3
+
+export CLEAN="true"
+
+export PATH=$(readlink -f ./gcc-*/bin/):$PATH
+
+# Build dependencies and MiniDexed
+./build.sh
+cp ./src/kernel*.img ./kernels/
+if [[ $? -ne 0 ]] ; then
+exit
+fi
+# Get Raspberry Pi boot files
+cd ./circle-stdlib/libs/circle/boot
+make
+if [ "${RPI}" -gt 2 ]
+then
+	make armstub64
+fi
+cd -
+
+# Make zip that contains Raspberry Pi 4 boot files. The contents can be copied to a FAT32 formatted partition on a microSD card
+#cd sdcard
+#../getsysex.sh
+#cd ..
+cp -r ./circle-stdlib/libs/circle/boot/* sdcard
+if [[ $? -ne 0 ]] ; then
+exit
+fi
+rm -rf sdcard/config*.txt sdcard/README sdcard/Makefile sdcard/armstub sdcard/COPYING.linux
+cp ./src/config.txt ./src/*img sdcard/
+if [[ $? -ne 0 ]] ; then
+exit
+fi
+echo "usbspeed=full" > sdcard/cmdline.txt
+cd sdcard
+cp ../kernels/* . || true
+if [[ $? -ne 0 ]] ; then
+exit
+fi
+zip -r ../MiniDexed_$(date +%Y-%m-%d).zip *
+cd -
diff --git a/src/mididevice.cpp b/src/mididevice.cpp
index 4e15cf1..b32d610 100644
--- a/src/mididevice.cpp
+++ b/src/mididevice.cpp
@@ -174,6 +174,7 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 	{
 		float32_t nMasterVolume=((pMessage[5] & 0x7c) & ((pMessage[6] & 0x7c) <<7))/(1<<14);
 		LOGNOTE("Master volume: %f",nMasterVolume);
+		printf("Master volume: %f",nMasterVolume);
 		m_pSynthesizer->setMasterVolume(nMasterVolume);
 	}
 	else
@@ -187,6 +188,7 @@ void CMIDIDevice::MIDIMessageHandler (const u8 *pMessage, size_t nLength, unsign
 				if (m_ChannelMap[nTG] == ucSysExChannel || m_ChannelMap[nTG] == OmniMode)
 				{
 					LOGNOTE("MIDI-SYSEX: channel: %u, len: %u, TG: %u",m_ChannelMap[nTG],nLength,nTG);
+					printf("MIDI-SYSEX: channel: %lu, len: %lu, TG: %lu\n",m_ChannelMap[nTG],nLength,nTG);
 					HandleSystemExclusive(pMessage, nLength, nCable, nTG);
 				}
 			}
@@ -334,8 +336,11 @@ void CMIDIDevice::HandleSystemExclusive(const uint8_t* pMessage, const size_t nL
   int16_t sysex_return;
 
   sysex_return = m_pSynthesizer->checkSystemExclusive(pMessage, nLength, nTG);
+  uint8_t instanceID = pMessage[2]&0xF;
   LOGDBG("SYSEX handler return value: %d", sysex_return);
-
+  printf("SYSEX handler return value: %d\n", sysex_return);
+  printf("TG %i\n", nTG);
+  printf("%02X\n", instanceID);
   switch (sysex_return)
   {
     case -1:
@@ -426,6 +431,39 @@ void CMIDIDevice::HandleSystemExclusive(const uint8_t* pMessage, const size_t nL
       LOGDBG("SysEx Function parameter change: %d Value %d",pMessage[4],pMessage[5]);
       m_pSynthesizer->setAftertouchTarget(pMessage[5],nTG);
       break;
+/* BeZo patches */
+    case 80:						// Set midi channel
+	m_ChannelMap[instanceID] = pMessage[5];
+	break;
+    case 81:						// Reverb level
+        m_pSynthesizer->SetReverbSend (maplong (pMessage[5], 0, 127, 0, 99), instanceID);
+	break;
+    case 82:						// Compressor toggle
+	break;
+    case 83:						// Transpose
+	break;
+    case 84:						// Detune
+	if (pMessage[5] == 0)
+        {
+        	// "0 to 127, with 0 being no celeste (detune) effect applied at all."
+                m_pSynthesizer->SetMasterTune (0, instanceID);
+        }
+        else
+        {
+                m_pSynthesizer->SetMasterTune (maplong (pMessage[5], 1, 127, -99, 99), instanceID);
+        }
+	break;
+    case 85:						// Panning
+        m_pSynthesizer->SetPan(pMessage[5], instanceID);
+	break;
+    case 86:						// Volume
+        m_pSynthesizer->SetVol(pMessage[5], instanceID);
+	break;
+    case 87:						// Pitch Bend
+	break;
+    case 88:						// Portamento
+	break;
+/* End of BeZo patches */
     case 100:
       // load sysex-data into voice memory
       LOGDBG("One Voice bulk upload");