Mar 22, 2019 12:30:00

Google is releasing Google Doodle, which allows anyone to compose using Bach like machine learning

Google's search engine logo is specially designed for holidays and anniversaries, such as chocolate making function on

Valentine 's Day, or 4K / 360 degree VR animation to commemorate the world's first professional film director. You This special logo, called ' Google Doodle ', became a Bach specification to commemorate the composer Bach 's birthday on March 21, 2019, Universal Time. I am learning Bach's hymn to a computer by machine learning, and it is a tool that anyone can create a Bach-like melodies simply by putting in the main melody.

Google
https://www.google.com/

To use Bach version of Google Doodle, first access Google from the above URL and press the play button at the bottom right of the logo.

After a while, the animation starts.

An intro explains how to use it. However, how to use just click mouse white blank score. The melody I made is a soprano part ...

Computers that machine-learned Bach's songs automatically add alto-tenor-bass to the melody.

So the intro is finished, to the composition screen. Because a blank score is displayed with the following feeling ...

I will click on the score with my mouse. Sharp and flat can be specified from the bottom of the screen.

Click 'Harmonize' after adjusting the tempo.

After waiting for a while, a magnificent melody that I didn't think I made was flowing out. Even if you make a score appropriately, it will be quite complete, so the motivation 'I would like to do it a little more then ...' will grow awfully.

How was the Bach version of Google Doodle created? It is also published, and you can read below how Google's AI project team

PAIR and Magenta did machine learning and modeling.

In honor of Johann Sebastian Bach
https://www.google.com/doodles/celebrating-johann-sebastian-bach

Coconet: the ML model behind today's Bach Doodle
https://magenta.tensorflow.org/coconet

The backstage of the Bach version of Google Doodle is also available in the following movie.

Behind the Doodle: Celebrating Johann Sebastian Bach-YouTube


Jacob Howcroft, a software engineer on the Google Doodle team. Bach's music has rules for creating good melodies and harmony, and it is a very good resource for learning machine learning.

'When I talk about machine learning, I will say, 'What collect data and find patterns from it?'' Says Leon Hong, a Doodler from the Google Doodle team.

'And use that pattern to create something new'

The Bach version of Google Doodle used the

Coconet model to perform various music tasks such as composition and harmonization. This Coconet was developed by Google's Magenta research project.

Anna Huang from Magenta, who got a Bach story from the Google Doodle team, said in a reply.

The Bach version of Google Doodle is an open source project, so it seems that various Google staff brainstormed it.

The learning data of Coconet is 306 songs of Bach's

choral (hym). Bach's Koral is always made up of four parts, soprano alto tenor bass, each of which has its own melody line, but with four overlapping, a beautiful harmony is created. Such Bach's Koral's 'accuracy' is very suitable for machine learning learning data.

And, in order to use machine learning in a web browser, it was necessary to borrow the power of

TensorFlow.js team. Tensor Processing Units have also been set up to provide a faster web experience for users who have opened Google Doodle on their devices using TensorFlow.js. Bach version Google Doodle was produced by such cooperation of various fields.