Some parts of it is N900 deja vu.

e.g. I deleted the default MP3 music files it had in /MyDocs/Music/. Then copied my own mp3 files. It saw my new ones but still thinks that it had the original ones also. But then it can't play them and throws an error a the file is missing. There is no way to refresh the library manually from what I can see.

So had to enable developer mode (which installs xterminal app for you) and then had to run "tracker-control --hard-reset". Few seconds later, voila, old record is gone and now only sees what it should see.

Glad I was an N900 owner. =P