The characteristics of surround melody are mainly reflected in the composition of its pitch relationship. This kind of melody is usually divided into two components, one is intermittent homophonic repetition, and the other is around a certain pitch as the axis.

this melody has a sense of direction, that is, the listener can feel the direction of the sound source. At the same time, it also produces a sense of surround, that is, the listener has the feeling of being surrounded by sound sources. Finally, the surrounding melody also has a sense of expansion, that is, the sound source spreads around and is reflected by objects.

These characteristics make the surrounding melody have unique appeal and expressive force in music creation and expression.