It is a standard in contemporary music. There are different ways, I know, a couple of years ago during the music festival downtown they got together about 80 players. It was just a weird ensemble of anyone they gathered, and so there were like, six electric guitars and just everything under the sun. And he conducted them in and out which, he checked with Riley, as opposed to certain people wandering through the score itself. As opposed to everyone just drifting and wandering and making this texture, he made it into a kind of dramatic piece. It was very strange, but kind of fun, too.