The Music of Erich Zann, The Original Short Story

I have examined maps of the city with the greatest care, yet have never again found the Rue d'Auseil. These maps have not been modern maps alone, for I know that names change. I have, on the contrary, delved deeply into all the antiquities of the place, and have personally explored every region, of whatever name, which could possibly answer to the street I knew as the Rue d'Auseil. But despite all I have done, it remains an humiliating fact that I cannot find the house, the street, or even the locality, where, during the last months of my impoverished life as a student of metaphysics at the university, I heard the music of Erich Zann.