Here is some marvellous Steve Reich music from YouTube. Now you can make your unique mashup off all or just some off these videos. You simply start and stop the videos you choose when you feel for it. In that way you are a producer and you make new music out off this videos. In that way you become more than a listener, you become a mashup artist. Some will call it stealing or cheating or even not music. But who cares, it is their loss, not yours. Enjoy yourself and take control over your listening habits.