The Platelayer (1957)

A group of plate-layers are packing the stone-bed under the rail with their pickaxes. They swing their picks in a coordinated, rhythmic way, thereby creating a sequence of rings, when they hit the stones or the rail, which sounds almost as music. When a train passes by, they stand silent beside the rail for a while, and then start the rhythmic beats again.

Unfortunately the movie The Platelayer is not yet available on HBO Max.