Endpoint:
http://socialapi.zune.net/en-US/members/USER_ID/playlists/BuiltIn-MostPlayedArtists
USER_ID:
Either the user GUID or Zune Tag.
Standard feed response format:
<?xml version="1.0" encoding="utf-8"?>
<a:feed xmlns:a="http://www.w3.org/2005/Atom" xmlns="http://schemas.zune.net/profiles/2008/01" xmlns:c="http://schemas.zune.net/catalog/music/2007/10">
<a:link rel="self" type="application/atom+xml" href="http://socialapi.zune.net/en-US/members/509cd2cf-9400-4e4c-b3d8-07aa46ce464d/playlists/BuiltIn-MostPlayedArtists" />
<a:updated>2011-03-19T04:25:17.598695Z</a:updated>
<a:title type="text">ZeBond's Most Played Artists</a:title>
<a:author>
<a:name>ZeBond</a:name>
<a:uri>http://social.zune.net/member/ZeBond</a:uri>
</a:author>
<a:id>urn:x-zune-userplaylist:ZeBond-BuiltIn-MostPlayedArtists</a:id>
<artists>
<artist>
<id>urn:uuid:99a20000-0600-11db-89ca-0019b92a3933</id>
<name>Snoop Dogg</name>
</artist>
<artist>
<id>urn:uuid:9b360300-0600-11db-89ca-0019b92a3933</id>
<name>Switchfoot</name>
</artist>
<artist>
<id>urn:uuid:e1070300-0600-11db-89ca-0019b92a3933</id>
<name>Rammstein</name>
</artist>
<artist>
<id>urn:uuid:b11e0500-0600-11db-89ca-0019b92a3933</id>
<name>Armin van Buuren</name>
</artist>
<artist>
<id>urn:uuid:cd310c00-0600-11db-89ca-0019b92a3933</id>
<name>First State</name>
</artist>
<artist>
<id>urn:uuid:b0170800-0600-11db-89ca-0019b92a3933</id>
<name>Oceanlab</name>
</artist>
<artist>
<id>urn:uuid:5ec30b00-0600-11db-89ca-0019b92a3933</id>
<name>OneRepublic</name>
</artist>
<artist>
<id>urn:uuid:c4270800-0600-11db-89ca-0019b92a3933</id>
<name>Breaking Benjamin</name>
</artist>
</artists>
<a:rights>Copyright (c) Microsoft Corporation. All rights reserved.</a:rights>
<a:entry>
<a:updated>2011-03-19T04:25:17.4738894Z</a:updated>
<a:title type="text">Drop It Like It's Hot (Album Version - Explicit)</a:title>
<a:content type="html" />
<a:author>
<a:name>Microsoft Corporation</a:name>
<a:uri>http://www.zune.net/</a:uri>
</a:author>
<a:id>urn:uuid:e9cf2b00-0100-11db-89ca-0019b92a3933</a:id>
<artist>
<id>urn:uuid:99a20000-0600-11db-89ca-0019b92a3933</id>
<name>Snoop Dogg</name>
</artist>
<c:track>
<c:id>urn:uuid:e9cf2b00-0100-11db-89ca-0019b92a3933</c:id>
<c:title>Drop It Like It's Hot (Album Version - Explicit)</c:title>
<c:sortTitle>Drop It Like It's Hot (Album Version - Explicit)</c:sortTitle>
<c:length>PT4M30S</c:length>
<c:trackNumber>3</c:trackNumber>
<c:discNumber>1</c:discNumber>
<c:playRank>520429708202.96</c:playRank>
<c:isExplicit>True</c:isExplicit>
<c:primaryArtist>
<c:id>urn:uuid:99a20000-0600-11db-89ca-0019b92a3933</c:id>
<c:name>Snoop Dogg</c:name>
</c:primaryArtist>
<c:album>
<c:id>urn:uuid:e3cf2b00-0100-11db-89ca-0019b92a3933</c:id>
<c:title>R&G (Rhythm & Gangsta): The Masterpiece (Parental Advisory)</c:title>
</c:album>
<c:rights>
<c:right>
<c:mediaInstanceId>e9cf2b00-0f00-11db-89ca-0019b92a3933</c:mediaInstanceId>
<c:providerCode>2871273:WMA_DOWNLOAD_ENC_192kb_MS_104</c:providerCode>
<c:licenseRight>AlbumPurchase</c:licenseRight>
<c:audioEncoding>WMA</c:audioEncoding>
<c:fileSize>6551702</c:fileSize>
</c:right>
<c:right>
<c:mediaInstanceId>e9cf2b00-0f00-11db-89ca-0019b92a3933</c:mediaInstanceId>
<c:providerCode>2871273:WMA_DOWNLOAD_ENC_192kb_MS_104</c:providerCode>
<c:licenseRight>Purchase</c:licenseRight>
<c:audioEncoding>WMA</c:audioEncoding>
<c:fileSize>6551702</c:fileSize>
</c:right>
<c:right>
<c:mediaInstanceId>e9cf2b00-1a00-11db-89ca-0019b92a3933</c:mediaInstanceId>
<c:providerCode>2871273:MP3_DOWNLOAD_UENC_320kb_070</c:providerCode>
<c:offerId>e3cf2b00-2102-11db-89ca-0019b92a3933</c:offerId>
<c:pointsPrice>800</c:pointsPrice>
<c:licenseRight>AlbumPurchase</c:licenseRight>
<c:audioEncoding>MP3</c:audioEncoding>
<c:fileSize>10739764</c:fileSize>
<c:price>800</c:price>
<c:priceCurrencyCode>MPT</c:priceCurrencyCode>
</c:right>
</c:rights>
</c:track>
</a:entry>
</a:feed>