   Midi.setClockTickCallback(&onMidiClockTick);
   Midi.setClockStartCallback(&onMidiClockStart);
 
+  // turn on LED
+  // digitalWrite(LED_PIN, HIGH);
+
   // start orchestra
   mOrchestra->start();
 }

#define LED_PIN 5
#define INIT_DELAY 1000

SensorOrchestra* mOrchestra;

// Forward declaration of callback functions



void onSensorValue(uint16_t pValue) {
  unsigned long t = millis();
  if(t - mSensorTime > 200) {
    Serial.printf("sensor value: %i\n", pValue);
    mSensorTime = t;
  }
}


