Such a sensuous experience, traveling in a rattling slow train with its windows open - immersed in sounds that smell like iron , sounds that feel like sheer wheezing speed. Never will an air-conditioned, shock-proof fast train be able to match this physical sensation of speed in a jangling local train.
I don’t suppose Bach has written any of his cantatas to be heard on a continuous bass of a rumbling train. But devoutly straining to follow the intertwining lines of a violin and an alto voice - instrument & human voice become interchangeable. And completely captive to these voices, it then hardly matters anymore whether the buzz of the basso continuo is the rumble of a train or of an organ.