Hollow sound refers to a special musical effect that does not use any notes or tones in the music, but uses a sustain or percussion-like sound produced by a percussion instrument. This musical effect is often used to create rhythmic, dynamic music, or to create an ethereal, dreamy atmosphere. In modern music, hollow sound has become a very common musical effect.

Void notes can enhance the overall effect of a piece of music and bring more emotion and emotion to the music. They can be used to express complex emotions such as sadness, loss, loneliness and helplessness, as well as emotions of happiness or joy. In addition, hollow sounds can be used to create atmosphere, especially suitable for film music, electronic music, game music, etc.

Void sounds not only make music more interesting, but more importantly, they allow listeners to better understand the emotion and emotion of the music. They can make music more expressive and make people feel what the music creator wants to express. Hollow sound has become one of the indispensable musical elements in modern music, and related musicians, performers and producers have also become important roles in music creation.