There are tons of really quirky and out there project that utilize midi keyboards. The one off the top of my head is controlling lights (more specifically, stage lights). On the more "out there" side, someone mapped their midi input to be able to play Overwatch.
Of course it is going to be able to create something if you feed it something that is already from its training set.
Would be silly if you had to buy the AWS keyboard considering a lot of people who'd use this would already have a MIDI keyboard.