Well, I guess he knows you're a kid from the start. And even if he's doing it 'cause he wants Mr Malfoy to owe him a favour or whatever, he's still asked you and he's going to hear just like he would any other songwriter. And, I mean, they all got their start sometime, didn't they? And, y'know, some of the really big musicians are just a few years out of school, so they couldn't have been a lot older than you when they started. Right?

So, y'know, even if he doesn't take this song, it's a start. And you'll write more of them, I bet, until some band buys one and makes it famous!