How to delete a iTunes / Apple ID account?
The description of the service:
iTunes is a media player, media library, online radio broadcaster, and mobile device management application developed by Apple Inc. It is used to play, download, and organize digital downloads of music and video on personal computers running the macOS and Microsoft Windows operating systems. The iTunes Store is also available on the iPhone, iPad, and iPod Touch.
Deletion complexity:
Hard
Contact customer services. You will lose access to any media you haven’t downloaded to your computer.