DjSurda:
All this means is not possible to just empty the tag metadata? I know I can delete the tag with the - button, but this will delete the INITIALKEY tag & I will not be able to edit this metadata anymore, I will loose the tag forever.
Has been answered here:
No. You can add any field without the need to "reserve" it first. It is just more convenient to have a GUI object at hand that puts the data into a specific field without the need to create the reference again and again.
Please see the documentation
Mp3tag menu
Shortcut
Command
⌘ ,
Preferences...
⌘ H
Hide Mp3tag
⌥⌘ H
Hide Others
⌘ Q
Quit Mp3tag
File menu
Shortcut
Command
⌘ O
Open...
⇧⌘ O
Add...
⌥⌘ C
Copy to...
⌥⌘ M
Move to...
⌫
Remove
⌥⌫
Delete
⌘ P
Create Playlist...
⌘ E
Export...
⌘ R
Refresh
⌥⌘ R
Refresh Tag
⌘ S
Save
⌥⌘ S
Save (Force)
⌘W
Close
Edit menu
Shortcut
Command
⌘ Z
Undo
⇧⌘ Z
Redo
⌘ X
Cut
⌘ C
Copy
⌘ V
Paste
⌥⌘⌫
Remove Tag
⌘ A
Select All
⌥⌘ ↑
Select Previ…
Again, please see the documentation
You can configure many areas of Mp3tag via the preferences window at Mp3tag → Preferences… or ⌘ ,
General
[Preferences → General]
Startup Folder
Here you can specify the startup behavior of Mp3tag.
None starts with an empty File List.
Previous starts with the folder which was loaded the last time you’ve used Mp3tag.
Other… lets you choose a explicit folder that is loaded on startup.
Genres
Use standard genres If enabled, Mp3tag lists the standard genres in the genre field on the Tag Pane…