code: private String getModType(String kennung) throws IOException
  	{
  		if (!kennung.equals("!Scream!")) 
  			throw new IOException("Mod id: " + kennung + ": this is not a screamtracker mod");
  
  		setNSamples(31);
  		setNChannels(4);
  		return "ScreamTracker";
  	}
docs: Get the current modtype
  @param kennung
  @return