Brits make great train music without singing:
https://www.youtube.com/watch?v=wX9muArmeFg Recorded live at the BBC. Clapton steals the show with his harmonica, but Baker is awfully busy with his brushes to set the mood.
I had a probably aspie friend who was a busking one-man-band and got his train imitation onto CBC, but I can't find that one. So far, I don't think anyone has done a diesel, though, nor the cars.
When I rode my bicycle over Donner Pass, I stopped at the top for the view, and noticed a train also getting close, so I waited a few minutes until I could race the engine. Of course, it still had to get the cars up to level, so I pulled out a decent lead, but then I had some miles of being slowly passed by freight cars clacking away, with their tempo slowly rising.
Quite a ride….! Then the ongoing sounds of the Clickety Clack of the Rail cars as a background ongoing Sound.
Think it would feel Melodic as well as the sound too.