Steven
I am checking settings in preferences
Custom Tags - Display Name - save to music file as tag
Custom 1 - Producer - Involved People List
Custom 2 - Recorded By - Involved People List
Custom 3 - Engineer - Involved People List
Cusom 4 - Mixed by - Mix Artist
Custom 5 - Mastered By - Involved People List
Custom 6 - Assistant Producer - Ditto
Custom 7 - Assistant Recording - Ditto
Custom 8 - Assistant Engineer - Ditto
Custom 9 - Assistant Mixing - Ditto
Custom 11 - Additional Production - Ditto
Custom 12 - (P) - Copyright
Custom 13 - © - Copyright
Custom 14 - Publishing - WWW Publisher
Custom 15 - Arranged By - Involved People List
Custom 16 - ISRC Code - ISRC
I dunno how to link files but try below note the Bill Callahan has producer brian beattie and JJ Golden
so JJ Golden - mastering credit is gone to producer credit
Tos
https://www.mediafire.com/folder/3b6anl6ru7k17/MOJO+The+Best+Of+2019+(CD+LP+2019)+MOJO+January+2020