As stated already. CDs should be stored alphabetically by artist (either band name as in the Jethro Tull example, or by surname as in the Jeff Wayne example, or by known name as for the likes of Prince or Adele).
Multiple albums by the same artist must be in album release date order earliest to the left.
CDs must be picture side up.
And the cd must be correctly oriented so that the writing is the right way up.
You can never split an alphabetical segment across two shelves, so all the G’s must be on one shelf for instance.
CDs are only ever out of the shelf when they are being played. The cd case must be placed neatly on top of the stereo.
CDs that you have brought, but not ripped to iTunes must not be filed. They must be left by the stereo until they are added to iTunes at which point they can be added to the shelves.
I do OCD properly. You lot are amateurs…….