Ask HN: What are examples of ambient Software?

I was reading the Wikipedia page for Ambient Music[1]. There's a few sentences I found particularly interesting:

"Ambient music is a genre of music that emphasizes tone and atmosphere over traditional musical structure or rhythm. A form of instrumental music, it may lack net composition, beat or structured melody. It uses textural layers of sound which can reward both passive and active listening and encourage a sense of calm contemplation. The genre is said to evoke an "atmospheric", "visual" or "unobtrusive" quality."

"[Brian] Eno opined that ambient music "must be as ignorable as it is interesting"."

What are examples of software that you think embody these qualities?

1.https://en.wikipedia.org/wiki/Ambient_music