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A long time ago, a friend mentioned this exact same idea! The analogy he used was how steam engine operators became so familiar with their machines that they could tell what was going on just by listening. I'm not sure if we can really do the same with services, but it's a fun thought experiment.

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You can sort of do this with a modern computer. The CPU and GPU fans spin up on increased load, and you can listen to the hard drive (the sounds correspond to some degree to the HDD indicator light). Over time you can get an idea of system activity just by listening to the machine itself.

At one place I worked at back in the 1970s there was a speaker on the mainframe (it may have just been a transistor radio picking up interference) and you could get some idea of what the machine was doing from the sound.

That was how the earliest computer music was made. You could play notes with loops that included varying numbers of no-ops to set the pitch.

Very Nullsoft Beep.

https://www.1014.org/code/nullsoft/nbeep/

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