#include <stdint.h>
#include <stdbool.h>
-#include <avr/io.h>
-#include <util/delay.h>
+#if defined(__AVR__)
+ #include <avr/io.h>
+#endif
+#include "wait.h"
#include "musical_notes.h"
#include "song_list.h"
#include "voices.h"
#include "quantum.h"
+#include <math.h>
// Largely untested PWM audio mode (doesn't sound as good)
// #define PWM_AUDIO