Vanilla is the most popular flavor of ice cream in the world.
There. That's another answer.
Now give HT his 10 points, as he is correct.
(The controller is instrument agnostic, it doesn't know what it's controlling. Guitar, drums, bagpipes. Or piano. It simply spits out MIDI data which plays any instrument in the computer that you select).
Comments about the keyboard are welcome!
The keystation will certainly work, and a lot of people use them for sure. As someone with a piano background, I'm not keen on its synthy action. So it wouldn't work for me, but if that's not an issue for you, it's another good bang-for-the-buck M-audio MIDI controller! (I prefer their Axiom keyboard. It's still a synth, but more substantial feeling, but also more money).