Mandarin, or Putonghua, is the official language of China. The country, however, is vast and diverse, with many regions speaking their own local dialects. Recently, a Teochew-language song, “Brew Tea Under the Moon,” the theme song of the Chinese indie film Dear You, has been gaining significant attention online. In this story, we meet its singer, Chen Jia, to learn more about her musical journey — and what it was like performing in a dialect she does not speak.