Not everyone can be as smart as all of us geniuses who studied experimental music in college. IGNORANT WRETCHES! If this app annoys them they can either learn what they should know anyway or be forever bummed at the atonal clangs that emanate from your ring tones.
This is a digital approximation of the prepared pianos legendary experimental composer John Cage used for many of his most famous compositions. "Prepared piano" for those of you who don't know is a piano who's strings have been pre-rigged with foreign materials to alter the sound of the piano. The sounds on Cage's piano supposedly sound like the real screws, bolts, and washers he used for his own compositions.
Because you can record your compositions and set them as your ring tone as an eternal reminder to everyone around that you are better than them.