Thank you, psychoadept,
Hmmm, but the new music files in the music folders not being scanned / in the library already would not be selected doing it that way, but they would be added to the library anyway?
And I have removed a music folder (it is not shown anymore in MusicBee) but its music files are displayed though. Why is that? How can I delete them from the library?
Where can I find the "rescan" option?
And how can one see the updating of the library is still running? The amount of scanned items obviously increases but I cannot find any display the process is still running.
Thanks again.