Offline tag in the library

Feature description:

Just a tab that you could press on and see every song/album/playlist you have downloaded.

Problem solved:

Not having a clean way of knowing which songs you have downloaded.

Brought benefits:

Adds comfort and ease of use.
You could easily manage your offline songs and playlists.

Other application solutions:

 

 

Additional description and context:

 

 

Screenshots / Mockup:

    

There’s already manage offline files, and you can enable the global filter available offline to reach exactly that without any inconvenience.