User blog comment:Fliu/Chapter 980: This Is Where the Fun Begins/@comment-72.238.4.226-20200524221121/@comment-108.83.222.210-20200525011539

A curious idea. He did say that Luffy and Zoro were still in range implying at the very least that he needs to be within a certain range of his targets to attack them. It could be that his music has an effect on those who hear it. Then again perhaps I am mistaken in that regard. It could be that he is manipulating the vibrations in the music in certain ways to strike in a particular fashion. That is what all sound is basically, vibrations created through an action.