diff --git a/MicroDexed.ino b/MicroDexed.ino
index 3a4435b..ef83321 100644
--- a/MicroDexed.ino
+++ b/MicroDexed.ino
@@ -889,6 +889,49 @@ void loop()
 #endif
 }
 
+/******************************************************************************
+  MIDI HELPER
+******************************************************************************/
+bool checkMidiChannel(byte inChannel, uint8_t instance_id)
+{
+  // check for MIDI channel
+  if (configuration.dexed[instance_id].midi_channel == MIDI_CHANNEL_OMNI)
+  {
+    return (true);
+  }
+  else if (inChannel != configuration.dexed[instance_id].midi_channel)
+  {
+#ifdef DEBUG
+    Serial.print(F("INSTANCE "));
+    Serial.print(instance_id, DEC);
+    Serial.print(F(": Ignoring MIDI data on channel "));
+    Serial.print(inChannel);
+    Serial.print(F("(listening on "));
+    Serial.print(configuration.dexed[instance_id].midi_channel);
+    Serial.println(F(")"));
+#endif
+    return (false);
+  }
+  return (true);
+}
+
+void init_MIDI_send_CC(void)
+{
+#ifdef DEBUG
+  Serial.println("init_MIDI_send_CC():");
+#endif
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 7, configuration.dexed[selected_instance_id].sound_intensity);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 10, configuration.dexed[selected_instance_id].pan);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 91, configuration.fx.reverb_send[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 93, configuration.fx.chorus_level[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 94, configuration.dexed[selected_instance_id].tune);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 103, configuration.fx.filter_resonance[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 104, configuration.fx.filter_cutoff[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 105, configuration.fx.delay_time[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 106, configuration.fx.delay_feedback[selected_instance_id]);
+  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 107, configuration.fx.delay_level[selected_instance_id]);
+}
+
 /******************************************************************************
   MIDI MESSAGE HANDLER
 ******************************************************************************/
@@ -1077,7 +1120,6 @@ void handleNoteOff(byte inChannel, byte inNumber, byte inVelocity)
     }
   }
 
-
 #if defined(USE_EPIANO)
   if (configuration.epiano.midi_channel == MIDI_CHANNEL_OMNI || configuration.epiano.midi_channel == inChannel)
   {
@@ -1775,20 +1817,6 @@ void handleClock(void)
   midi_bpm_counter++;
 }
 
-void dac_mute(void)
-{
-  sgtl5000.lineOutLevel(0.0);
-  sgtl5000.dacVolume(0.0);
-  sgtl5000.volume(0.0, 0.0); // Headphone volume
-}
-
-void dac_unmute(void)
-{
-  sgtl5000.lineOutLevel(SGTL5000_LINEOUT_LEVEL);
-  sgtl5000.dacVolume(1.0);
-  sgtl5000.volume(SGTL5000_HEADPHONE_VOLUME, SGTL5000_HEADPHONE_VOLUME); // Headphone volume
-}
-
 void handleStart(void)
 {
   midi_bpm_timer = 0;
@@ -1828,52 +1856,22 @@ void handleSystemReset(void)
 }
 
 /******************************************************************************
-  MIDI HELPER
+  VOLUME HELPER
 ******************************************************************************/
-bool checkMidiChannel(byte inChannel, uint8_t instance_id)
+void dac_mute(void)
 {
-  // check for MIDI channel
-  if (configuration.dexed[instance_id].midi_channel == MIDI_CHANNEL_OMNI)
-  {
-    return (true);
-  }
-  else if (inChannel != configuration.dexed[instance_id].midi_channel)
-  {
-#ifdef DEBUG
-    Serial.print(F("INSTANCE "));
-    Serial.print(instance_id, DEC);
-    Serial.print(F(": Ignoring MIDI data on channel "));
-    Serial.print(inChannel);
-    Serial.print(F("(listening on "));
-    Serial.print(configuration.dexed[instance_id].midi_channel);
-    Serial.println(F(")"));
-#endif
-    return (false);
-  }
-  return (true);
+  sgtl5000.lineOutLevel(0.0);
+  sgtl5000.dacVolume(0.0);
+  sgtl5000.volume(0.0, 0.0); // Headphone volume
 }
 
-void init_MIDI_send_CC(void)
+void dac_unmute(void)
 {
-#ifdef DEBUG
-  Serial.println("init_MIDI_send_CC():");
-#endif
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 7, configuration.dexed[selected_instance_id].sound_intensity);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 10, configuration.dexed[selected_instance_id].pan);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 91, configuration.fx.reverb_send[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 93, configuration.fx.chorus_level[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 94, configuration.dexed[selected_instance_id].tune);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 103, configuration.fx.filter_resonance[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 104, configuration.fx.filter_cutoff[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 105, configuration.fx.delay_time[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 106, configuration.fx.delay_feedback[selected_instance_id]);
-  MD_sendControlChange(configuration.dexed[selected_instance_id].midi_channel, 107, configuration.fx.delay_level[selected_instance_id]);
+  sgtl5000.lineOutLevel(SGTL5000_LINEOUT_LEVEL);
+  sgtl5000.dacVolume(1.0);
+  sgtl5000.volume(SGTL5000_HEADPHONE_VOLUME, SGTL5000_HEADPHONE_VOLUME); // Headphone volume
 }
 
-/******************************************************************************
-  VOLUME HELPER
-******************************************************************************/
-
 void set_drums_volume(float vol)
 {
   master_mixer_r.gain(MASTER_MIX_CH_DRUMS, vol);
diff --git a/config.h b/config.h
index a202609..e7fb539 100644
--- a/config.h
+++ b/config.h
@@ -914,7 +914,6 @@ typedef struct performance_s {
 
 typedef struct drums_s {
   uint8_t vol;
-  bool smartfilter;
 } drum_t;
 
 typedef struct configuration_s {
@@ -926,7 +925,6 @@ typedef struct configuration_s {
   fx_t fx;
 } config_t;
 
-
 enum master_mixer_ports {
   MASTER_MIX_CH_DEXED2,
   MASTER_MIX_CH_DEXED1,