In mp3tag geänderte Einträge für Werktitel und Satz werden in macOS Musik (ALAC) nicht angezeigt

[MotleyG]

The Music app in MacOS (and iTunes in Windows) will not refresh the metadata automatically for files that have already been scanned into the library. You will need to force this to happen.

See here for some suggestions.

Force iTunes To Update Track Info After Using MP3TAG

For those with IOS devices or are simply using iTunes as your primary music manager, you will find that mp3tag is far more flexible and powerful than the built-in Get Info editor. However any changes made outside of iTunes will not automatically be reflected into any music files that have already been loaded. There are two ways to get these changes to be reflected into iTunes. Open the Get Info panel for each track. This will force iTunes to grab the latest metadata info and overwrite whatev…