Frank, you are really going to hate me (Sorry!), but I have found some more issues while dealing with the issue of incorrect tracks not being deleted/added etc.
1. When you tap on the screen too quickly, or too many times, the screen will turn white and display a blank page with nothing on it or sometimes it will display a browser window. I have not found any way to get back to the Rune Audio screen short of shutting it down and then restarting it.
Controlling it from my PC has no effect and the screen simply remains white or with the browser window displayed.
Do you know of any way around that?
2. Another issue that I have found with MPD, is that if you have two albums with the same album title, it is grouping those albums together as one larger album.
For example, I have these two Albums in my collection:
Hall And Oates - 2001 - The Best Of
The Church - 1999 - The Best OfIf you go into Artists and then scroll down to The Church and then you select the
Best Of, it will list the contents of the
Hall And Oates - 2001 - The Best Of and then the contents of
The Church - 1999 - The Best Of, as though they were one album by the same artist, in this case The Church.
Obviously, MPD is discarding the artist and year part of the album name and then grouping because of the same title of the album.
Also, any album named Greatest Hits are grouped together as well, and I have quite a few of those.

Apologies for throwing all of this at you at the same time, but if you could add these things to your growing 'To Do' list I would appreciate it.

Oh, and I found a very nice write up on Instructables about how to install and setup RuneAudio. Well done guys and gals!!
http://www.instructables.com/id/Raspber ... RuneAudio/