How to import Music with correct Artist info in iTunes?

See Repair security permissions for iTunes/Music for Mac - Apple Community for some possibilities. Untagged files or those with multiple tags might not import into another library with the metadata that you would expect. Music won't pick up any information encoded in the file path.

tt2

WAV files don't carry a tag at all. Apparently it is technically feasible, but almost no software does it, and in particular neither iTunes nor Music are able to add a tag or read one if it is there. If you turn off the option to keep the media files organized in Music's preferences, don't use the Automatically Add to Music folder, or add them in from a location outside the Media folder and don't have the Copy files... option selected then Music will leave these files in their original folders, otherwise they likely get moved to Unknown Artist/Unknown Album which makes them harder to repair. Assuming you can keep them in conventional artist and album subfolders before adding these into Music then I have an AppleScript that can parse the information in the path into details to apply to the library. The layout should be along the lines of .../<Artist or Album Artist>/<Album>/[D-]##/<Name>.<Ext>. See "Get Info" changes album name and relocat… - Apple Community for details.

tt2

What format are these files in? Multiple tags is a potential issue with .mp3 files that isn't immediately obvious. In fact I don't know of a tool to detect the issue, and have only ever resolved it by removing all tags and then rebuilding.

tt2

I made an error in the section of text that I reposted, I originally typed a slash between the ## to represent the track number digits and <Name>, when I should have used a space.

Apart from that error my earlier on December 9 long reply should describe a potential reason why your files don't import with the details that you expect. WAV files don't have a tag. Apple Music reads the filename, complete with any leading track number digits, as a song name, and that's all you get, so these tracks are listed under Unknown Artist & Unknown Album. As noted if other details are present in the path, and you arrange to import the files in a way that doesn't change the file path, then I have an AppleScript that can rebuild the missing details. The blue text in my previous post is a link to an older thread where I discuss that script in more detail and provide a link to it. Alternatively go back to the source machine and convert the tracks to Apple Lossless which you can transfer and import complete with metadata.

tt2

Not sure what resurfaced this thread, but I spotted a typo:

The layout should be along the lines of .../<Artist or Album Artist>/<Album>/[D-]## <Name>.<Ext>

tt2