Metadata

<?xml version="1.0"?>
<query>
    <userid>[UserID]</userid> <!-- required-->
    <userkey>[UserKey]</userkey> <!-- required-->
    <action>[Action]</action> <!-- required-->
    <source>[SourceFile]</source> <!-- required-->
    <format>
        <output>[OutputFormat]</output> <!-- required-->
        <metadata>
            <title>[Title]</title>
            <copyright>[Copyright]</copyright>
            <author>[Author]</author>
            <description>[Description]</description>
            <album>[Album]</album>
            <service_name>[ServiceName]</service_name>
            <service_provider>[ServiceProvider]</service_provider>
        </metadata>
    </format>
    <!-- Format params -->
</query>

{
    "query": {
        "userid": "[UserID]", // required
        "userkey": "[UserKey]", // required
        "action": "[Action]", // required
        "source": "[SourceFile]", // required
        "format": {
            "output": "[OutputFormat]", // required
            "metadata": {
                "title": "[Title]",
                "copyright": "[Copyright]",
                "author": "[Author]",
                "description": "[Description]",
                "album": "[Album]",
                "service_name": "[ServiceName]",
                "service_provider": "[ServiceProvider]"
            }
            // format params
        }
    }
}