hendrik on 01 Aug, 2017 07:00 AM
Apple iCloud isn't particularly good at dealing with metadata changes, but if you want to fix metadata, you need to do this on the computer that has the actual files. How well iCloud transfers the data to your dat-to-day mac will be something that is completely up to iCloud. Note that fields not supported by iTunes won't get transferred at all.
To create playlists with beaTunes you most likely want to take advantage of color, mood, etc. Those are all fields that iCloud does not support, so you will only be able to take advantage of those on the mac that also has your files.