Playback of MP3 over web?

[evilpenguin]

I've been working on figuring out the Last.FM API the last few days and i'm finally able to login and get an XML file containing links to the actual MP3 files...

<playlist version="1" xmlns:lastfm="http://www.audioscrobbler.net/dtd/xspf-lastfm">
<title></title>
<creator>Last.fm</creator>
<link rel="http://www.last.fm/skipsLeft">9999</link>
<trackList>
    <track>
        <location>http://play.last.fm/user/####.mp3</location>
        <title>Rainy Day Parade</title>
        <id>1226439</id>
        <album>Pink Pearl</album>
        <creator>Jill Sobule</creator>
        <duration>184000</duration>
        <image>http://userserve-ak.last.fm/serve/174s/12622979.jpg</image>
        <lastfm:trackauth>59e64</lastfm:trackauth>
        <lastfm:albumId>1416116</lastfm:albumId>
        <lastfm:artistId>1013490</lastfm:artistId>        
                <link rel="http://www.last.fm/artistpage">http://www.last.fm/music/Jill+Sobule</link>
        <link rel="http://www.last.fm/albumpage">http://www.last.fm/music/Jill+Sobule/Pink+Pearl</link>
        <link rel="http://www.last.fm/trackpage">http://www.last.fm/music/Jill+Sobule/_/Rainy+Day+Parade</link>
        <link rel="http://www.last.fm/buyTrackURL">http://www.last.fm/affiliate_redirect.php?restype=9&amp;id=1226439&amp;supplier=24</link>
        <link rel="http://www.last.fm/buyAlbumURL"></link>
        <link rel="http://www.last.fm/freeTrackURL"></link>
    </track>
...
...
</trackList>
</playlist>

Is there a Sage media playback API call that I could use stream these like a podcast?

Edit: I might add that if there is a way to do this then I'm fairly certain I could get an Last.FM plug-in going that works for Clients and Extenders.