Following are a number of back-translations as well as a sample translation for translators of Job 30:31:

• Kupsabiny: “I used to sing and dance with happiness
  but now I sing with grief (like in a funeral).” (Source: Kupsabiny Back Translation)
• Newari: “The melody of my lyre has become a song of death,
  [and] as for my flute, it has become like the sound of those who mourn.” (Source: Newari Back Translation)
• Hiligaynon: “The sound of my harp and flute became sad.’” (Source: Hiligaynon Back Translation)