public void discoverChildren()  {
		GsSong[] songs=null;
		if(album!=null) 
			songs=album.getSongs();
		if(artist!=null) 
			songs=artist.getSongs();
		if(playlist!=null) {
			File f=new File(playlist.saveFile());
			if(useFile)
				songs=readFile(f);
			else {
				songs=playlist.getSongs();
				savePlaylist(songs,f);
			}
		}
		if(songs!=null)
			aDisc(songs);
	}