[Gade]

I'm sorry, another question: I don't see any artist fanart in fullscreen music. When I select the artist in the Artists list I see a fanart, but in fullscreen music I just see a black background (and sometimes, when I switch back to Home, the karaoke text appears on top of Home, it looks like it takes some time to load and just loads at the wrong screen)

Nevermind, my problem was due to the incompatibility of the skin with Artist Slideshow, that had installed for a different skin. Disabling that add-on has solved the problem, I'll unistall it.
Though, now I have an high cpu problem, If I start reproducing music, as soon as I stop it from the Music Home widget, I get an infinite loop of Window Init (DialogSeekBar.xml), Window Deinit (DialogSeekBar.xml). Not sure what causes it, still investigating. It may be https://trac.kodi.tv/ticket/15673.

The skin absolutely support the Artist Slidehow addon.
It works perfectly on all my machines.

What doesn't work for you with the addon? Did you configure the addon settings correctly?

The karaoke text being there when you switch to the home screen is probably because Kodi needs to exit the lyrics window first.
And it could hang for a bit before the addon is shut down.
I haven't experienced this myself though.