The sound breaks the soul

The piano music in the attic suddenly stopped, and the room instantly fell into dead silence.
A hint of surprise flashed across Meng Xianyin's eyes, and she looked at the girl with a hint of disbelief.
This was the first time she encountered such a thing. Someone could actually break her Soul Breaking Song directly with sound waves!
You should know that in the entire Xuantian Continent, the only force that can use music to enter the Tao is the Xianyin Pavilion, and her own attainments...