Sequencer playing = null;

Sequence LoadSequence(String file) {
  Sequence sequence = null;
  try {
  //  URL url = new URL("http://www.falsifian.org/a/k40E/" + file);
    InputStream inputs = createInput(file);
//    println(inputs);
    sequence = MidiSystem.getSequence(inputs);//new File(dataPath(file)));
  } catch (Exception e) {
    println(":( ... " + e.getMessage());
  }
  return sequence;
}

void play(Sequence s) {
      try {
  if (playing != null) {
    playing.stop();
  } else {

    playing = MidiSystem.getSequencer();
    playing.open();
  }
  playing.setSequence(s);
  playing.start();
      } catch (Exception e) {
    println(":( ... " + e.getMessage());
  }
}