What makes you say that? [He's unphased by his removal of his fingers from the piano.] Skill doesn't matter. It's worth doing for its own sake, to enrich your own life. Besides, it's all practice, anyway.

[Or at least Kaworu thinks so. It doesn't occur to him that Nageki might be able to sing instead. Smiling, he reaches down and takes his hands in his own, guiding them back up to the keys.]

Why don't you give it a try? To see if you want to learn. If you don't, that's fine.