"The guest has a piper, leaning on the song and making peace. Its voice is whiny, like resentment, like crying; The sound is endless. Dance in the valley, weep for the widow. "
The author's description of the flute sound is excellent, and five words "such as" are used to describe the rendering.
Mainly to arouse the discussion about life in the following question and answer. So this section plays a transitional role in the structure.