Heart, not so heavy as mine

Heart, not so heavy as mine
Wending late home –
As it passed my window
Whistled itself a tune –
A careless 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 paused, and carolled –
Then bubbled slow away!
It was as if a chirping brook
Upon a dusty way –
Set bleeding feet to minuets
Without the knowing why!
Tomorrow, night will come again –
Perhaps, weary and sore –
Ah Bugle! By my window
I pray you pass once more.