Y.YQL(
        'select id, name, url from music.artist.search where keyword="Madonna" ' +
        '| sort(field="trackCount", descending="true")',

        function(response) {
            if (!response.query.count) {
                Y.one('#container').setHTML('YQL query for Madonna returned no records or failed');
                return;
            }
            var treeDef = [ ],
                results = response.query.results.Artist || [ ];

            if (!Lang.isArray(results)) {
                results = [results];
            }
            Y.Array.each(results, function (entry) {
                treeDef.push( {
                    label: entry.name,
                    artistId: entry.id,
                    url: entry.url,
                    type:ArtistNode

                });
            });

            var artistTree = new Y.FWTreeView({

                tree: treeDef,

                dynamicLoader: dynLoader

            }
        );
        artistTree.render('#container');

{{>event-listener}}

    });