
Anyway, I added the top directory Queen again and waited. After a (long) while all albums show up in the PC Directory tree??? (Why has PC Directory been empty until now? What's its purpose?) And, again, less than half of them show up in in Audio/Artists/Queen.
Then I started ITunes which accesses Firefly, it shows all Queen albums. Also, before this experiment, the music directory on bubba has been used as the source dir for AmaroK which organizes its view based on the ID3-tags and that worked fine (showing all Queen albums). So the files should be alright I assume.
The music directory size is about 40Gb. Queen directory size is about 1Gb. /var/db/sqlite3.db is about 26Mb.
File rights are "-rwxrwxrwx" for all directories and files under top dir Queen, i.e. the same for those that show up and those that don't.
There might be more of these "hick-ups" but this is the one I focus on now.
Any ideas?