Each entry <chart-item> contains information for each entry including a sub-set under the <spotify> node which contains specific links to spotify versions of this tune.
<chart>
<info>top 40 chart listing (uk) - generates once per week. structure is different than before</info>
<chart-item>
<position>1</position>
<image>http://www.bbc.co.uk/radio1/chart/artwork/catco55301.jpg</image>
<weblink>http://www.bbc.co.uk/music/artists/5dcdb5eb-cb72-4e6e-9e63-b7bace604965</weblink>
<artist>Bon Jovi</artist>
<track>Livin' On A Prayer</track>
<chartchange>up 3</chartchange>
<weeksinchart>105 weeks in chart</weeksinchart>
<spotify track_id="spotify:track:1K95m0tusqzkVum2PmzeIk" album_id="spotify:album:5uduy563XjmdkLryIna87r">
<http>
<track>http://open.spotify.com/track:1K95m0tusqzkVum2PmzeIk</track>
<album>http://open.spotify.com/album:5uduy563XjmdkLryIna87r</album>
</http>
</spotify>
</chart-item>
</chart>