In "Street Cries" by Sarojini Naidu, why did the poet use the phrase "singing street"?

The street in the poem is described with a
differentat the end of each stanza. It is first "eager," then "panting," and
finally "singing." In the first stanza, at dawn, it is both the fasting men and the
bakers (or bread vendors) who are eager. At noon, everyone on the street is panting in the sun.
These are instances of hypallage, in which the epithet is transferred from the noun it would
naturally modify to another noun in order to create an unexpected effect ("the arrow flew
through the swift woods").

At twilight, however, not only are the
flower-sellers calling out, but the lutes are playing and the lovers whispering to each other.
In such an , it seems as though the whole street is permeated by music, so the final words of
the poem are less an instance of hypallage than a description of the effect created by the soft
sounds of the evening, accompanied by starlight and torchlight.

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