* I like Stevens idea with just a number in the right corner (I feel that any other corner makes it distracting).
* You open up the same menu when clicking on "2 albums" as you do when clicking on the [...] that shows up in the right corner...
...so why not simply replace the [...] button with that number? The only difference would be that the number would always show. I also think it makes more sense clicking a number representing the number of albums and then showing those albums, rather than a button labeled "..."
* I do agree with Zak though that just a number could be "any number" while any extra clarifying letters would make it cluttered. I propose that the number is prefixed with a small CD-icon.
* I also like Zak's idea to make it configurable, but maybe this is just one of those situations where it's better to just keep it simple.
So in short:
* Replace [...]-button with a number, open [...]-menu when clicking that number.
* Prefix the number with an icon representing albums, like a CD.