How to delete mysql databases?

[Skywatch]

Had a bit more time on this today and it is a little confusing...Here is what happends......

Kodi is set to scan libraries at start up - but it doesn't seem to .No scanning on the top right of the screen (hide scanning is not checked) so I assume it is not working....

The music library remains empty (was populated before though, no idea what happened to it).

If I add a SMB folder to the music library it adds that folder. I scan folder to library and that completes, but back on the main kodi menu I get nothing except the default message about nothing in the music library.

Movies, tvshows, music videos show sometimes, but not always. (This bit really puzzles me right now)

If I use yatse to http control the pi and update libraries the videos showup after scanning, but music does not (maybe locally cached by yatse?) - but If i select update video libraries all videos show on yatse and the kodi main page. If I do the same for music libraries I can now see the scanning of smb music folder on the top right of Kodi, but still on completion I get nothing in the music libraries.

I tried to clean the music library, but after 14 hours there was no progress on the progressbar (stuck at the begining).

It was working normally a few weeks back, I really don't know what caused this or how to fix. Will keep digging.

Hmmmm.....