Don’t watch this if you’re easily depressed!
Charts Music, by Johannes Kreidler. The melodies are derived from stock charts, and then arranged with Microsoft’s Composition Software Songsmith.
Kreidler is a provocateur and uses music to raise ethical questions. He’s best known for using his piece, product placements, to create a nightmare for GEMA (the German RIAA, and explore the ways that copyrights limit art in the process.