In a standard music library, metadata (tags) can be volatile. If you re-import a folder or move files, you often lose manual edits, play counts, or custom "mood" tags. An "Eternal" feature within a Beets environment would act as a for your curation.
While there isn't a widely documented public project or archive specifically named in major software repositories or community databases, the name strongly suggests a connection to the Beets media library management system —a powerful tool for obsessive music collectors. beetseternal.7z
If this file is a custom distribution or a collection of plugins for Beets, an interesting feature it likely contains (or could implement) is . Featured Concept: The "Eternal" Metadata Anchor In a standard music library, metadata (tags) can be volatile
: The feature uses SHA-256 hashes of the audio data itself. Even if you rename the file Track01.mp3 to 01 - The Best Song.mp3 , Beets recognizes the audio "fingerprint" and instantly restores your custom tags from the eternal backup. While there isn't a widely documented public project