On the surface this song makes people in AoE do a Rock Party shuffle, no actual dead people.
https://youtu.be/KQ6zr6kCPj8
The problem is the effect is Contageous and Sticky, once each day affected targets need to make a "Will" save, or do a repeat of their party Shuffle, and then it spreads to people near by causing people in close proximity (a ranged touch) to the Shuffler to make a will Daily save or join in the Shuffle. Fortunately once a person makes their save they are not affected by other "Shufflers".
https://youtu.be/KQ6zr6kCPj8
The problem is the effect is Contageous and Sticky, once each day affected targets need to make a "Will" save, or do a repeat of their party Shuffle, and then it spreads to people near by causing people in close proximity (a ranged touch) to the Shuffler to make a will Daily save or join in the Shuffle. Fortunately once a person makes their save they are not affected by other "Shufflers".