UPDATED: Super Remove Dead Tracks v5.6
For macOS 10.15 and later only. Scans the Music or TV app for tracks whose files are inaccessible or no longer available (so-called "dead" tracks). Outputs a tab-delimited text log listing the tracks by Artist, Name, Album and last known file location. The registered version will delete the tracks.
Also see List MIAs and Media Folder Files Not Added.
Latest version:
- Additional accommodations for macOS 11 Big Sur
More information for Super Remove Dead Tracks v5.6 and download link is here.