Noting that the predominantly sung language of the peninsula is unfamiliar to most Western listeners, a report released Tuesday by the Korea-based World Health Organization revealed that North Korean music is significantly worse than Japanese music.

“Based on our research, we have concluded that the standard deviations between North and Japanese music are nearly three times what they are between North and South Korea,” said lead researcher Kim Yong-soo, adding that the gap in musical literacy between North and South Korea is even wider than 50 percent at times.

“The Koreans have one of the longest verbal skills of any Asian nation, and they also use the most common language. But when you look at it, North Korean music isn’t all that Korean—most of it is garbage.” At press time, researchers had concluded that the only acceptable song for children under 12 was Styx’s The Serpent Is Rising.