Apple Music
What is the role of media and library files? Does media contain the the music (mp4)? Thanks! Sorry if this is a bit basic.
Mac mini 2018 or later
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Assuming you mean the iTunes Library.itl or Music Library.musiclibrary files and the iTunes Media folder, then:
- The itl file contains your music database, with all the music info including file locations and meta data.
- The iTunes Media folder contains the actual media files, mp3, acc, m4a etc... for your music in folders organized by artist and by album along with album art.