code: public Timecode add(SampleCount samples)
  	{
  		final SampleCount mySamples = getSampleCount();
  		final SampleCount totalSamples = mySamples.add(samples);
  
  		return TimecodeBuilder.fromSamples(totalSamples, dropFrame).build();
  	}
docs: Add some samples to this timecode
  
  @param samples
  
  @return