You should be aware, though, that you've not really exhausted the possibilities. For those of us who maintain a database or spreadsheet of every recording on every CD/LP/tape/DVD, there is a method that is far superior to the ones described. This is really useful for collectors (I know a few) who have very large numbers of recordings, of many different works, by many composers. I am on the verge of this now, as I'm finding it increasingly difficult to locate recordings that I want to listen to.
Each CD/LP/tape/DVD is given a unique identifier number. (A sticker on the spine.) The numbering is most easily consecutive, and every time you add a new item to your collection, it is given the next number in the series. Doesn't really matter what the number is.
In your database or spreadsheet, you create an entry for every composition on the CD/LP/DVD/tape -- composer, work, soloists if any, orchestra, conductor, date - and item number - the number you just assigned to the item.
You shelve items in order by number, not by composer. You can easily find anything you want to listen to in your database or spreadsheet, determine the item number, then pull it from the shelf.
Doing things this way has some disadvantages. If you misfile the item on the shelf (read the number wrong) it will be very hard to find it when you go to look for it, because it will not be in the correct location. It also means being good about keeping your database/spreadsheet up to date. But the advantages are great. You can spread into other rooms, even put items in boxes and note the range of item numbers on the outside. As long as you keep them in order, you can find them easily.
This approach has been around a long time for maintaining control of photocopied articles, technical reports, that sort of thing. It's often called the accession number filing system. It works.
And if you think it reduces serendipity, not true, Sit down in from of a randomly arranged collection and started scanning the items. You discover an amazing number of things that set off light bulbs -- "Wow! I haven't listened to that in years!"
Since I recently moved and most of my CDs are still in boxes, and I know I'll have things in 3 different rooms, I'm seriously thinking of transitioning to this method. But then, my collection is maybe quite a bit bigger than most people have.