And if you're a golfer and you watch a golf film and Matt Damon swing, and it's not great, then you're not going to believe in the golf story, you're not going to believe in the rest of the film. That's the whole movie, so if that swing looks like crap, the movie's crap.
Part of the joy of music is listening to lots of different kinds of music and learning from it. Specifically for me, I like writing songs that move me, and what moves me are beautiful songs on the piano or the guitar and really, really heavy music.