diff --git a/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h b/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h
index 760d136..6c5bcf6 100644
--- a/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h
+++ b/CheapSynth_FM4osc2Poly_v0_5_6/ADSRslow.h
@@ -61,7 +61,7 @@ class ADSR
 
 	inline
 	unsigned int convertMsecToControlSteps(unsigned int msec){
-		return (uint) (((ulong)msec*CONTROL_UPDATE_RATE)>>10); // approximate /1000 with shift
+		return (unsigned int) (((unsigned long )msec*CONTROL_UPDATE_RATE)>>10); // approximate /1000 with shift
 	}
 
 	inline
@@ -96,7 +96,7 @@ inline
 	void setTime(phase * p, unsigned int msec)
 	{
 		p->control_steps=convertMsecToControlSteps(msec);
-		p->audio_steps = (ulong) p->control_steps * AUDIO_TICKS_PER_CONTROL;
+		p->audio_steps = (unsigned long) p->control_steps * AUDIO_TICKS_PER_CONTROL;
 	}
 	
 	
diff --git a/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino b/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino
index e5b705b..f1bcc76 100644
--- a/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino
+++ b/CheapSynth_FM4osc2Poly_v0_5_6/CheapSynth_FM4osc2Poly_v0_5_6.ino
@@ -48,6 +48,9 @@ to less computationally demanding envelopes in Mode 0 and 2), toggles between sh
 */
 
 #include <MIDI.h>
+
+MIDI_CREATE_DEFAULT_INSTANCE();
+
 #include <MozziGuts.h>
 #include <Oscil.h> /oscSaw/ oscillator template
 #include <Line.h> // for envelope
@@ -55,7 +58,7 @@ to less computationally demanding envelopes in Mode 0 and 2), toggles between sh
 #include <tables/saw1024_int8.h> // table for Oscils to play
 #include <tables/smoothsquare8192_int8.h> // NB portamento requires table > 512 size?
 #include <mozzi_midi.h>
-#include <ADSRslow.h>
+#include "ADSRslow.h"
 #include <mozzi_fixmath.h>
 #include <LowPassFilter.h>
 #include <Portamento.h>