Comment by gnat

LA Metro: Ambient turns the Los Angeles rail network into a generative music instrument. Every note you hear is a real train arriving at a real station right now. Each of the six rail lines and two BRT lines has its own synthesizer voice. The piece evolves throughout the day as trains and buses come online and go offline, becoming dense during rush hour and more spacious late at night. The piece is ever changing and no two days are the same.