song = self.db.getSong(job.message)
            if not song:
                # make sure the artist is in the database
                artistid = self.db.validateArtist(job.tag['artist'])
                # add the song
                self.db.addSong(artistid, job.tag['title'], job.tag['length'],
                                job.message)
                songid = self.db.getSongId(job.message)
            else:
                # check if the values stored for the song are updated
                songid = song[0]
                artist = song[1]
                title = song[2]
                length = song[3]

                if artist != job.tag['artist']:
                    self.db.updateArtist(songid, job.tag['artist'])

                if title != job.tag['title']:
                    self.db.update(songid, "title", job.tag['title'])

                if length != job.tag['length']:
                    self.db.update(songid, "length", job.tag['length'])

            self.db.addPlaylist(job.getTimestamp("%Y-%m-%d %H:%M:%S"),
                                                 songid)