clearing selected fields only

Is there a way to use the Actions to erase all fields including ones that Mp3tag doesn't read (like Album Artist, Mood, Website Link, etc) but WMP11 does.

The only tags I want to keep are the basic ones: Title, Artist, Album, Track, Year, Genre. I am guessing there is a command for erasing "ALL" fields.

If Mp3tag does read those advanced tags, then what are the correct field codes so I can delete the junk manually?

Mp3tag also reads these fields. Did you ever open extended tag view [Alt+t] ?

"Remove fields except"