After being in a limited beta run, Amadeus Code has just opened up to the public, ready to turn would-be artists into hit-making musicians. How it works: Amadeus Code's AI churns through music libraries, breaking down music into tiny units and looking for patterns. When a songwriter uses the app, the AI can then pull up those patterns and suggest new notes, slowly building the composer's melodies into music. "AI has this peculiar ability to find novel solutions--some successful, some not so much," says Amadeus Code cofounder Taishi Fukuyama in a statement. "These are suggestions which a composer can take or leave. Its decisions can spark a new idea for a composer, getting her into new creative territory."