I know the question is why the need to show titles in MuvUnder when we're searching albums? Well, there are plenty when you take the visual layout of your music catalog seriously.
MuvUnder stacks each files under 1 album according to the album name, which I think is fine but at the same time there should be an option to lay each song titles individually where a user can manually drag & drop covers to the specific files. Ok, I know you still don't understand where I'm going so let's use the image below as reference. In the case of Beyonce's "I am... Sasha Fierce", I have 7 songs of that album in my library however I don't want to have the same cover for all 7 Singles when I actually can find 7 different covers for these files. When I load the album "I Am... Sasha Fierce" I should be able to modify each song's cover not only by their album's name but also according to their titles; that's where the need to list the titles comes into place.
As illustrated below, each songs of the album have a different cover. Not only that helps your library for not being populated by 1 cover for 15 different songs (which have their own covers floating somewhere on the net) but also gives importance again to Singles covers that the artists and labels still release and promote.