I often sit on my sofa and hum tunes that I made up in my head. While doing that, I also imagine that my automatically gets converted to a beautiful musical piece. Google's new machine learning algorithm experiment, Tone Transfer, makes that fantasy come true -- at least to an extent. Go to the Tone Transfer site from your Android phone or desktop (Windows or Mac), select "Add your own," and record your 15-second hum or tune. You can use your voice, tap on your table, or play an actual instrument.

Google's machine learning algorithm will convert that tune into a digital signal, and then you can convert it into a tune with Flute, Saxophone, Violin, …