1) Re-ran the 3 steps. Now have 34,567 songs i.e. one is missing. Any ideas how to identify the missing file?

2) I noticed in the files I looked at in Yate a UDTI something like this "Apple App PID M65BD4649F4B32A2A". Did running the Actions add this? What is it used for?

Thanks!

Nicholas

1)

It's late to ask now, but if you saved the log from the last step (3) it might have shown which file could not have been added. I've uploaded an action called Attempt to Link All Files. Download and install:

https://2manyrobots.com/actions/AttempttoLinkAllFiles.zip

You can run the action through the Batch Processor or interactively on files loaded in the UI. When running through the Batch Processor, turn off the Auto Save File and Verbose options.

2)

Yes Step 1, removed them and step 2 put them back in. An Apple App PID is a track's so called Persistent ID in the iTunes/Music/TV application. These PIDs are supposed to be valid unless you do a rebuild of your Music library. For example when you migrated to Catalina.

The advantages of linking via PIDs as opposed to metadata are many: multiple copies of an album with the same metadata, metadata is changed while not linked, files are renamed or moved when not linked, etc.

Green has noting to do with Music. Green simply means no changes have been made.

Load the single track into Yate and do an Apple Apps>Add to Apple App. That will the track to iTunes. Make sure Preferences-Apple Apps- Auto Import has PIDs checked. After doing the Add, save the changes in the file.

Let's keep our fingers crossed. Music in the latest 10.15 beta crashed twice on me already.