 
     send_whammy_position((byte) sequence[current_step]);
 
-    // next step
     current_step += 1;
     current_step = current_step % (sizeof(sequence) / sizeof(sequence[0]));
   }

      break;
  }

  if (DEBUG) {
    delay(500);
  }
}

void play_loop() {


// the setup function runs once when you press reset or power the board
void setup() {
  #ifdef DEBUG
  Serial.begin(9600);
  #endif
  
  //  Set MIDI baud rate:
  midi_serial.begin(31250);

  start_button.init();
}
