Ok, per usual the actual story is slightly less ludicrous. I’m reading this as they are going to make “songs” by taking real sounds but mixing and arranging them into rhythms, the same way they do in some movies as part of an in-world lead up to a song and dance number. So it will blend in but you may notice if you look for it and it will probably impact your subconscious and mood. Which seems to be the main goal.