the fall of the house of usher

The narrator watches while Roderick paints. One of the paintings depicts the interior of a long vault or tunnel, clearly well below the earth, with no source of artificial light, yet bathed in "a flood of intense rays." Another pastime of Usher's is playing guitar. Due to his excitement and nervousness, he seems to excel at playing it. He revels in strange improvisations, and he often sings along.