This article provides some technical details on how Apple Music stores songs. More interestingly, at the bottom are links to other articles which supply more d

This article provides some technical details on how Apple Music stores songs. More interestingly, at the bottom are links to other articles which supply more detail. Those details aren't obvious to casual users. For example, music files on the "primary" computer are treated differently than files on other devices. Edit: see also comments at the bottom of the articles. This stuff is sure confusing many people.