https://www.cnet.com/news/google-doodle-taps-ai-to-unleash-your-inner-bach/

Bach already had a great deal of musical knowledge close at hand when he was born in Eisenach, Germany, in 1685. His family included 50 known musicians and several notable composers.

But you and I most likely need a little help to create compositions that sound like Bach's The Art of Fugue or Brandenburg Concertos. So Google used machine learning to analyze more than 300 Bach compositions, and with the push of a button, the Doodle will use what it's learned to transform your two-measure melody into Bach's signature style.