Which male protagonist in the novel used the sound of a flute or flute as a weapon?

I recommend "Under the Night". The male protagonist of this sci-fi-doomsday crisis novel can use a flute to control his soul and defeat his enemies. There were also "Tears of Wang Ju" and "Listening to the Flute in the Evening by the Plum Blossom". Although the male lead did not directly use the flute as a weapon, the flute played an important role in the plot and was one of the key elements that pushed the story forward. I hope you like this fairy's recommendation. Muah ~😗