Max Richter's Sleep

　　Imagine you’re dreaming, and in your dream you pick a flower in heaven, and then you wake up with the flower in your hand. This is the kind of experience that composer Max Richter hopes to make palpable among the audience for Sleep, an eight-hour-long piece of music that explores of the liminal space between wakefulness and sleep, between consciousness and subconsciousness.
　　 Tak...