Question

Justify the solitary repear

Answer 1

The poem begins with the speaker asking readers to behold a young girl 'reaping and singing by herself' in a field. The song the girl sings is a sad song, and anyone passing by, the speaker says, should either stop and listen or 'gently pass' so as not to disturb her. He is so struck by the sad beauty of her song that the whole valley seems to overflow with its sound.
In the second stanza, the speaker compares the girl's singing to that of a nightingaleand a cuckoo bird. He says that the song she sings is more welcome than any a nightingale might sing to weary travelers in the desert, and the sound of the her voice is more thrilling to hear than the cuckoo-bird in spring. 

at last he said that he continued to hear her song as she continued to work in the valley. As he moved behind the mountain he carried the song on memory of her, long after he could actually hear it.