When the aural clashes with the visual.

While the sonic economy example demonstrates an underlying similarity across town, within this similar base, one could go deeper to root out the neighborhood specifics.  Indeed, the more closely one looks (or in this case, listens), the more difference one finds. For example, slightly up the street from the Study Center’s office, there is a man who sits and sings 1960s tunes every day for about 6 hours.  He serves as an anomalous aural marker on the city map, a distinguishing feature of this particular downtown piece of the city. (For anyone questioning, he is singing Bob Dylan’s “It ain’t me, babe.”)