Seul-Gi and Ah-Reum are 3rd year students at the National High School of the Traditional Arts. They are also best friends. Seul-Gi majors in pansori (Korean traditional music) and Ah-Reum majors in Gyeonggi Folk Music. During their summer break, the girls struggle with pressures and anxiety. They then take a special summer school class due to a lack of attendance. Meanwhile, the Education Burea informs their school that they will take part in a chorus contest. The school selects Teacher Ham, a composer, to make up the school's chorus team. The pool consists of students from the special summer school class. A conflict also ensues between Ms. Ham, who majored in western music, and the students, who are majors in traditional Korean music. Can the students compete in the chorus performance?
片中合唱团成员包括女主角金瑟琪和赵亚伦,均由真实的「Du-re Sori」成员担纲演出,而饰演咸老师则是影片的音乐指导咸贤尚,片中他更成功将韩国传统打击乐和西洋乐器结合而成动人的配乐。 《哆来之声》曾在不少影展巡回展出,包括首尔国际青少年电影节「成长电影的发现」单元并获观众投票选定为SIYFF视线奖、堤川国际音乐电影节、英国International Filmmaker Festival of World Cinema「Best Sound Track」。