I would never recommend putting 90 separate content feature instances on a page at all. That means you will have 90 or more hits to the database to produce the content for the page.
For the scenario you are working with I would use a single instance of Simple List/Links feature and create an item for each artist. It will naturally sort by sort rank and title. By default each item gets the same sort rank so it really sorts alphabetically but you can boost the priority of any item with a lower sort rank. You can see a similar scenario on our consulting list page. This way all the items are retrieved in a single hit to the database.
The only down side of the Simple List/Links feature is that it require you to enter a link (we will be eliminating this requirement in the future), but you could enter the same link for each one just to get past the requirement, and then in the settings you can check "Show Only Description" so it won't show the link anyway. But it gives you a list of html items by just using the description and would be much more efficient than having 90 separate Html items on the page.
Hope it helps,