Linq in xml selecting child nodes

using System.Linq;
using System.Xml.Linq;

var xml = @"
<parent>
 <child>
  <tag>AAA</tag>
  <att>BBB</att>
 </child>
 <child>
  <tag>CCC</tag>
  <att>DDD</att>
 </child>
</parent>";

var xDoc = XDocument.Parse(xml);

var query = from i in xDoc.Root.Descendants("child")
            select new
            {
                Tag = i.Descendants("tag").First().Value,
                Att = i.Descendants("att").First().Value
            };

var items = query.ToArray();