No More Learning

Heart not so heavy as mine,
Wending late home,
As it passed my window
Whistled itself a tune, --

A           snatch, a ballad,
A ditty of the street;
Yet to my irritated ear
An anodyne so sweet,

It was as if a bobolink,
Sauntering this way,
Carolled and mused and carolled,
Then bubbled slow away.