This is a sound-based genjutsu sung by toads, their most powerful genjutsu. The song's sheet music has been passed down through the generations of Mount Myōboku, but due to the complexity of the lyrics and melodies, only the Two Great Sage Toads have ever been able to successfully perform it. It takes some preparation time for the two to establish the correct harmony, which in the meantime will alert opponents to their location and to what they're doing; they rely on allies to fend off or distract opponents until they're ready.
Once the toads have harmonized and the song is started, all opponents – regardless of number or skill – who hear it fall under the genjutsu's influence. Within the illusion, victims are surrounded by four toad samurai, who seal them within a barrier. The victim's mind and body remains trapped until either the user releases them or their real body is killed. For the latter case, Mount Myōboku's secret Stone Swords are typically used, driven into the victim's heart. After the song is finished, the toads' throats are left strained and require rest.