Putting name on end of a file

I am trying to help a blind DJ who has a problem with the format of his files.

He wants the artist name to be after the song name as his identifier programme only read the first part.

I removed all the names from some files so that it read the song title only but as there are so many songs with the same name he has asked if we can add the names possibly by copying the artists list over to the file list so they appear at the end of the file..

Is this possible please??

To add the contents of the field ARTIST to the existing filename, you could try:
Format string: %_filename% by %artist%
(The "by" is optional, of course)