Even though the official release date is still a few days away, if you live in the UK you can download the Alfie Boe and Robert Plant duet, Song to the Siren, from iTunes now.
As it's not available by means fair or foul outside the UK, here in Canada I can only speculate that it is a surprisingly good duet. Boe is a magnificent singer, and Song to the Siren is in his wheelhouse.
The revelation is Plant. Not that he can sing, of course, but that his voice works so well in the style with which this song is done. Plant has changed his singing style dramatically over the last ten years - maybe it's even fair to say five. Nowhere does the positive aspects of that change come across as well as it does singing next to a very musical operatic singer.
An Alfie Boe and Robert Plant duet is, to use a phrase I frankly don't like, outside the box. Yet it works far better than I expect most fans of either artist expected it to. Wether Alfie Boe can sing Black Dog remains to be seen, but this combination works.
At least that's what I might say, if I had means to access the iTunes download. If only I had relatives in the UK to do a £1 favour for me.