Playing music: easy. Composing short little songs: easy. Writing abc files: easy. Trying to make a music video: really really really difficult.
I wasn't expecting this, I must say. I thought, oh yeah, think up a few scenes, record them, stick bits together, and voila, a movie.
But for some reason it just doesn't work like this. First, you have to deal with files that are 20 GB long. I mean, that is a long upload time just for starters. How on earth do you exchange files of this size? And then, how on earth do you get the damn band in the middle of the damn screen? Either they are too small, and you can't see anything, or they are too big and look weird. And then you have to use software you've never used before (fraps and iMovie for me) and it doesn't do what you want it to do but you don't know this until you've spent hours trying to get it to do what you want, which of course you never do. And NTSC or PAL, or what frames/second, and what resolution, what screen size, how to cut a bit out, zoom a bit in, change the transition, oh, but what did the other guys send, and will it match, and will it fit, and what length should it be, and how can you ever get a crowd of extras organised, and so you spend days trying to upload and cut and trim and film and zoom and transition and then the finished product looks bloody awful because you made some really basic errors way back when and so you have to start again.
So you go and kick your children instead because that at least is a productive exercise.