MusicBrainz API/Search/ReleaseGroupXmlOutput

Example: http://www.musicbrainz.org/ws/2/release-group/?query=release:fred

Xml

<metadata xmlns="http://musicbrainz.org/ns/mmd-2.0#" xmlns:ext="http://musicbrainz.org/ns/ext#-2.0">
    <release-group-list offset="0" count="2">
        <release-group type="compilation" id="765675cc-070b-36e0-829c-69c7634e92ff" ext:score="100">
            <title>The History of John Fred and the Playboys</title>
            <artist-credit>
                <name-credit>
                   <artist id="05cfb5c7-0152-41f4-a9c9-622e8f710dfa">
                      <name>John Fred & His Playboy Band</name>
                      <sort-name>Fred, John & His Playboy Band</sort-name></artist>
                </name-credit>
            </artist-credit>
            <release-list count="1>
                <release id="9cddae0c-1764-41d2-a1c4-0af2a8404e57">
                   <title>The History of John Fred and the Playboys</title>
                </release>
            </release-list>
        </release-group>
        <release-group type="live" id="9856e177-6a63-3141-96da-00b80d08c66e" ext:score="100" xmlns:ext="http://musicbrainz.org/ns/ext#-2.0">
            <title>An Evening With John Kander & Fred Ebb</title>
            <artist-credit>
                <name-credit>
                    <artist id="0f1d3e45-b3a4-4a93-b29b-06ee9c6e94a8"><name>John Kander & Fred Ebb</name><sort-name>Kander, John & Ebb, Fred</sort-name></artist>
                </name-credit>
            </artist-credit>
            <release-list count="1>
                <release id="a204adf8-2bc7-46cf-b4af-b773bf803a89">
                   <title>An Evening With John Kander & Fred Ebb</title>
                </release>
            </release-list>
        </release-group>
    </release-group-list>
</metadata>