Go to today’s Google Doodle (the link leads you to the Doodle archive) and Artificial Intelligence will let you create your own melody in the style of Johann Sebastian Bach – which you can then share!
It’s a lot of fun.
I don’t know how long it will be active, but I assume for quite awhile.
I’m adding it to The Best Online Sites For Creating Music.
Here’s a video about the Doodle: