 const byte SONG_CONFIGURATION = 0;
 const byte CONFIGURATION_START = 1;
 const byte CONFIGURATION_FINISHED = 2;
+const byte CURRENT_PART = 3;
+const byte NEXT_PART = 4;
 
 const byte SONG_OFFSET = 10;
 

  if (realtimebyte == STOP) {
    digitalWrite(bpmLed, LOW);
    playing = false;
  }
}



    return CONFIGURATION_START;
  } else if (strcmp(strings , "CF") == 0) {
    return CONFIGURATION_FINISHED;
  } else if (strcmp(strings, "CP") == 0) {
    return CURRENT_PART;
  } else if (strcmp(strings, "NP") == 0) {
    return NEXT_PART;
  }
  return -1;
}
