Deezer has indeed a good sound quality. I read their devel doc (didn't delve into actually, just a quick look) and it seems to me that they address only web sites and mobile apps.
But since there are devices with Deezer client embedded (e.g Sonos or others) I assume that if you enter in some kind of affiliate program I could get access to far useful APIs.

admin said

Yeah, could be feasible. Hope someone offers as volunteer…
PS: bravi i muro del canto!

If you don't mind, I could try to drop an email to Deezer support asking if my assumptions are correct, explaining them what is Raspyfi and our desire to get an embedded client.

P.S.: contento che ti siano piaciuti! E interstellar overdrive e' anche una delle mie preferite