THE RHYTHM OF THE RAILS. Did Dmitri Shostakovitch get the side-drum figure in the attack theme of his Leningrad symphony on a train. That was the musical support from the Springfield rest area to the Wenonah fuel stop. The side-drum figure sounds like the Trans-Siberian Express. Trains have distinctive sound signatures. A North American passenger train rattles differently from a British train, and both rattle differently from a Russian train. Test yourself: can you distinguish a stack train from a coal train?