The research aims to discuss how to arrange the piano collaborative part of the song basic on the poem "In this life, day of mother's disaster episode one of three" written by Guang-Zhong Yu, melody by an amateur composer Chih-Ming Lin, to express the emotional tension of the poem and how to combine the poem and the music closely by the arrangement. Will also mention about the harmonic architecture, how the bass going and how to arrange the interlude and coda in the article. The composer of the melody doesn't have music background, it does matter to respect the original ideas of the composer when some of the parts of the music need to be fixed or to be embellished, will mention about the way and the music theory based on to fix and embellish in the article.