Formulaic writing has been around as long as printed music. Indeed, there have been many attempts to automate it over the centuries, though Mozart's dice game was likely written in jest.
The Brill Building, Tin Pan Alley, Hollywood, Denmark St. (London), Nashville… All had writers beating each other up by copying each other looking for that little spark that generates a hit.
from Denmark St. (Kinks)
You go to a publisher and play him your song
He says, "I hate your music and you hair is too long
But I'll sign you up because I'd hate to be wrong"
You've got a tune, it's in your head, you want to get it placed
So you take it down to a music man, just to see what he will say
He says, "I hate the tune, I hate the words, I'll tell you what I'll do
I'll sign you up and take it round the street
And I'll see if it makes the grade
And you might even hear it played on the rock and roll hit parade"
Ray Davies
Let's see…
A machine writes your words
Another machine writes your music
Yet another arranges it or
You download loops, cut copy and paste
Did you actually create anything? Are you be proud of it?
No thanks.