The exchange is no contest: a long road receives a don’t hurry, and an unfinished thought can wait until dawn. The refrain turns patience into one voice following another, while the bridge brings its higher and lower paths together.
The acoustic-folk brief explicitly requests alternating duet phrases and space. Call and response links an opening phrase to an answer; texture includes both alternation and simultaneous parts. High and low in the words establish no real singers or fixed voice parts. Follow the timing of replies, then the final gathering.