You know that feeling when you come up with a melody, but forget it moments later? A classic trick is to record yourself humming the idea and build on the concept when you have time. But what if you could turn that poorly hummed melody into a realistic audio sample of a flute or violin performance? Tone Transfer is an online music app powered by machine learning and designed by Google’s Magenta Team. The app lets users upload audio of a single voice or instrument, then play it back through ...