Well, Bach wrote many fugues for the organ not the least of which includes the Art of the Fugue, but something like that could certainly fit the OP’s description. He still hasn’t described the instruments yet, which is somewhat alarming.
10 of Bach’s 20 children died. I was thinking about this: how not very long ago it was completely normal for a lot of a person’s children to die. Today if somebody loses a child you think of it, rightly, as one of the very worst things that could happen to anybody. It was the norm a hundred and fifty years ago. There wasn’t even an understanding of microbes or the causes of disease. If typhoid fever rolls through, your kids are going to die and there is very little you can do about it. 3 of Lincoln’s 4 children died.
I think sometimes it’s easy to forget how far we’ve come.
Now, on the song: there are tons of dark classical pieces. Unless the song is something fairly popular and well known, it’s pretty tough to tell what which one is stuck in your head without more info. Maybe interpret the song through another medium, like a drawing, and post it here. That would help.
I can tell you that right now I’m listening to only one cello. And the song was featured in an Audi commercial a few years back. That’s two really big hints. Can you give us any hints like this?
I serenaded three working girls last night with the hopes of finally putting this enigma to rest. Sadly they were unable to help because they were only familar with work post 1850. At least the music that entered their souls for the last time was something of beauty
Perhaps the latent effect of Hiroshima? The manifestation of the unstoppable, innate action of women to trend to simplistic ideas, or finally, you are a philistine uncapable of contributing significant ideas. Jk, when i come to japan we can have a good time.