https://experiments.withgoogle.com/ai/sound-maker/view/
Description: NSynth: Sound Maker is an online synthesizer that allows you to combine instrument timbres to create new sounds.
Artificial Intelligence and NSynth: NSynth: Sound Maker uses artificial intelligence to determine the timbres of the new sounds. Rather than combining the two sounds and playing them on top of one another, it creates new sounds in between the chosen sounds.
Background: NSynth was created as part of Google's Magenta project, which aims to determine whether artificial intelligence can be used to create visual art and music.