Program: 72665
Project: 72665
Buggy source:
public void fire() throws IllegalActionException {
  super.fire();
  if (resetBeat.isOutsideConnected() && resetBeat.hasToken(0)) {
    if (((BooleanToken)resetBeat.get(0)).booleanValue()) {
      _currentBeat=0.0;
    }
  }
  if (reset.isOutsideConnected() && reset.hasToken(0)) {
    if (((BooleanToken)reset.get(0)).booleanValue()) {
      _allChords.clear();
      _currentBeat=0.0;
      _barProgress=0.0;
      _durations.clear();
    }
  }
  if (chordSequence.hasToken(0)) {
    Chord c=(Chord)((ObjectToken)chordSequence.get(0)).getValue();
    Double chordDuration=c.getDuration();
    String chordName=c.getName();
    if (chordName.equals(MusicSpecs.TERMINATION_CHORD)) {
    }
 else {
      Chord newChord=new Chord(chordName,chordDuration);
      _allChords.put(_barProgress,newChord);
      _barProgress+=chordDuration;
    }
  }
  if (trigger.isOutsideConnected() && trigger.hasToken(0)) {
    trigger.get(0);
    _currentChord=_getChordForBeat(_currentBeat);
    if (_currentChord != null && !_currentChord.equals("String_Node_Str")) {
      nextChord.send(0,new StringToken(_currentChord));
    }
    _triggersSinceLastOutput++;
  }
  if (_triggersSinceLastOutput >= 10) {
    startLick.send(0,new BooleanToken(true));
  }
  if (incomingNote.hasToken(0)) {
    StringToken note=((StringToken)incomingNote.get(0));
    if (_durations != null && _durations.size() > 0) {
      double duration=_durations.get(0);
      Token[] nextTokens=new Token[2];
      nextTokens[1]=new DoubleToken(duration);
      if (duration < 0) {
        nextTokens[0]=new StringToken(MusicSpecs.REST_SYMBOL);
      }
 else {
        nextTokens[0]=note;
      }
      RecordToken next=new RecordToken(labels,nextTokens);
      acceptedTuples.send(0,next);
      _currentBeat+=Math.abs(duration);
      currentBeat.send(0,new DoubleToken(_currentBeat));
      _durations.remove(0);
    }
  }
  if (incomingDuration.hasToken(0)) {
    double nextDurationValue=((DoubleToken)incomingDuration.get(0)).doubleValue();
    if (nextDurationValue != 0) {
      _durations.add(nextDurationValue);
    }
    if (Math.abs(nextDurationValue - 0.33) < 0.1) {
      _durations.add(nextDurationValue);
      _durations.add(nextDurationValue);
    }
  }
}

Fixed version (ground truth):
public void fire() throws IllegalActionException {
  super.fire();
  if (resetBeat.isOutsideConnected() && resetBeat.hasToken(0)) {
    if (((BooleanToken)resetBeat.get(0)).booleanValue()) {
      _currentBeatCursor=0.0;
    }
  }
  if (reset.isOutsideConnected() && reset.hasToken(0)) {
    if (((BooleanToken)reset.get(0)).booleanValue()) {
      _allChords.clear();
      _currentBeatCursor=0.0;
      _barProgress=0.0;
      _durations.clear();
    }
  }
  if (chordSequence.hasToken(0)) {
    Chord c=(Chord)((ObjectToken)chordSequence.get(0)).getValue();
    Double chordDuration=c.getDuration();
    String chordName=c.getName();
    if (chordName.equals(MusicSpecs.TERMINATION_CHORD)) {
    }
 else {
      Chord newChord=new Chord(chordName,chordDuration);
      _allChords.put(_barProgress,newChord);
      _barProgress+=chordDuration;
    }
  }
  if (trigger.isOutsideConnected() && trigger.hasToken(0)) {
    trigger.get(0);
    _currentChord=_getChordForBeat(_currentBeatCursor);
    if (_currentChord != null && !_currentChord.equals("String_Node_Str")) {
      nextChord.send(0,new StringToken(_currentChord));
    }
    _triggersSinceLastOutput++;
  }
  if (_triggersSinceLastOutput >= 10) {
    startLick.send(0,new BooleanToken(true));
  }
  if (incomingNote.hasToken(0)) {
    StringToken note=((StringToken)incomingNote.get(0));
    if (_durations != null && _durations.size() > 0) {
      double duration=_durations.get(0);
      Token[] nextTokens=new Token[2];
      nextTokens[1]=new DoubleToken(duration);
      if (duration < 0) {
        nextTokens[0]=new StringToken(MusicSpecs.REST_SYMBOL);
      }
 else {
        nextTokens[0]=note;
      }
      RecordToken next=new RecordToken(labels,nextTokens);
      acceptedTuples.send(0,next);
      _currentBeatCursor+=Math.abs(duration);
      currentBeat.send(0,new DoubleToken(_currentBeatCursor));
      _durations.remove(0);
    }
  }
  if (incomingDuration.hasToken(0)) {
    double nextDurationValue=((DoubleToken)incomingDuration.get(0)).doubleValue();
    if (nextDurationValue != 0) {
      _durations.add(nextDurationValue);
    }
    if (Math.abs(nextDurationValue - 0.33) < 0.1) {
      _durations.add(nextDurationValue);
      _durations.add(nextDurationValue);
    }
  }
}