ass also has an <code>
		__str__</code> method that prints the name of the artist, the title, and duration of the song. 
	</p>
	<pre>
class Song:
    """A song."""

    def __init__(self, artist, title, minutes, seconds):
        """ (Song, str, str, int, int) -> NoneType

        A Song with an artist, title, minutes, and seconds.

        >>> song = Song('Neil Young', 'Harvest Moon', 5, 3)
        >>> song.artist
        'Neil'
        >>> song.title
        'Harvest Moon'
        >>> son