It's a "heavyweight" object.
You might want to create only one FileTagger object for reading all your data,
and copy the properties from the FileTagger into an Mp3File or a PropsMap,
for when you add it to the PlayList. Having large collections of FileTaggers may cause a drain on the system, and you don't need FileTaggers for each object unless you are actually editing the id3 tags.
So for example, the Id3 Edit Form should hold onto one FileTagger object, and
that's the one that's connected to the OK, Cancel and Reload buttons.
[I'll add a diagram here soon ]