Sort Artist colum in File List

[DjSurda]

@ohrenkino

You define a field to which a value should be written. To get an existing value, you set a format string where to find it. In your case with ARTIST it gets the contents from all possibly existing fields of the type ARTIST and displays them separated by \\. This string then gets written back to the target field, in this case %ARTIST%.
For the sorted artist it would be
Value: $meta_sep(artistsort,\\)
Field: %artistsort%

@MotleyG

Here is my definition.

For the value, using the $meta formula gets all multi-value tags fields with that same name, using the defined separator.

Ok, Thank you, I understood both of you.

What I don’t get is:

• Does the user tell the software to gets the contents from all possibly existing fields of the type Artist by the “code” $meta_sep(***,\\) where *** is the name of the field? How Is supposed I should know/learn this code? (this code is not listed here Format Strings and Available Placeholders )
  While asking you & cheecking again the documentation I found what seems to be the answer: Format Strings and Available Placeholders , is not?

so %***% is a placeholder & $meta_sep() & \\ are script functions.

Just curious, do you know this code before starting using MP3tag?
It is based in a common computing code/language or users must learn when starting to use the software?