@<items>
<playlist_name>PLAYLIST MEGA NAME</playlist_name>
<channel>
<title>title_1</title>
<logo>logo_1.jpg/logo>
<description>desctiption_1</description>
<playlist_url>playlist_1.htm</playlist_url>
</channel>
<channel>
<title>title_n</title>
<logo>logo_n.jpg/logo>
<description>desctiption_n</description>
<playlist_url>playlist_n.htm</playlist_url>
....
@

and I have qml like

@XmlListModel {
source: "http://example.com/playlists.xml"
query: "/items/channel"
XmlRole { name: "logo"; query: "logo/string()" }
XmlRole { name: "title"; query: "title/string()" }
XmlRole { name: "description"; query: "description/string()" }
XmlRole { name: "playlist_url"; query: "playlist_url/string()" }
XmlRole { name: "stream_url"; query: "stream_url/string()" }
}@

and I have 2 troubles:

how to get access to /items/playlist_name (single-instance-tag) ?

I tried

XmlRole { name: "playlist_name"; query: "/items/playlist_name/string()" }

but this construction failed :-(

And I have other xml-srtuct like first but instead of /items/content/playlist_url field named /items/content/stream_url

It is possible to describe it with one XmlListModel?
How to detect type of model by presence playlist_url or stream_url?

Thx.