Hi,
Producer is meant for Video files See https://www.mediamonkey.com/wiki/WebHelp:About_Track_Properties there is no equivalent one for audio files Except maybe for M4A due the iTunes/WMP tag format, but that do not have Involved People tag (very strange strange). In all other formats Involved people should be used .

https://wiki.hydrogenaud.io/index.php?title=Tag_Mapping

Thank you for report, I am adding this for revision, great catch.

NOTE: Added as https://www.ventismedia.com/mantis/view.php?id=21114

Any suggestions welcome.

When I open the view options for the right panel advanced menu, there is an option to show the field "producers" under the category "Music". however there seems to be no tag field called "Producer" in a file's properties, or anywhere else accessible. Where does this field exist and how can I edit it? Especially useful for Hip-Hop songs.