I added a tag "Artist Sort Order" and Updated the library from tags. It works now.
Great to hear you got it working.
How do I find the raw tag?
I think the tags you pasted above are the "raw tags" from the file. You did get those from the Tag Dump window right? MC can only import tags that have a corresponding entry in MC's fields. If it finds a tag in a file that matches a field name in it's internal database, it fills it in. So you're seeing exactly what is in the file tags, as imported by MC.
What is the function of the Search Keywords on the Manage Library Fields window. How do I / should I use that?
The search system in MC is rather sophisticated. By default, when you type words in the search box, MC searches across a bunch of different fields including artist, album, song name, comments, etc. But you can limit your search to a specific field with a search term like this:
[Artist]=Pink
That will match any artist with pink in their name somewhere. Notice the square brackets which tell MC that this is a field name. It can be sort of awkward to type these if you're not a fast typist. So, MC has the concept of "search keywords", which are shortcuts for doing specific searches like this. For an artist search, you can just type:
artist=pink
or
ar=pink
Those are both "search keywords" defined in the Manage Library Field interface. You can make your own if you want; which is what that field is for.
Brian.