    """ (Playlist, str) -> NoneType

        >>> playlist = Playlist('Canadian Artists')
        >>> playlist.title
        'Canadian Artists'
        >>> playlist.songs
        []
        """

        self.title = title
        self.songs = []

    def add(self, song):
        """ (Playlist, Song) -> NoneType

        Add song to this playlist.

        >>> stompa = song.Song("Serena Ryder", "Stompa", 3, 15)
        >>> playlist = Playlist('Canadian Artists')
        >>> playlist.add_son