There's a blog post from 6-8 years ago I can no longer find anywhere, where someone made node.js create similar ambient sounds and compared it to listening to hard drives doing mechanical work to understand what the computer was doing. Apparently it was actually useful to audibly hear when, for example, a request failed due to an authentication problem which had its distinct sound emerging from the pattern of code execution on that branch.

Does anyone have a link to what I'm talking about?