The wave bow is a kind of bowing method that changes the bow speed and the string sticking degree to make the long note produce wave-like strength changes, or to make the slurred bow appear to be broken but not broken, so it is also called "wave bow". Bows generally do not use symbols in musical scores, but are used flexibly by the performers according to their own understanding of the music.

It usually has the following concentrated usages:

1. Use the bow to accelerate and pressurize instantly, and play a certain rhythm pattern in the long note.

2. Through the change of the strength of the bow, the slurred bow is played coherently and angularly, that is, for each note in the slurred bow, the fingers of the right hand exert a force on the bow, and then relax. The difference between the bow and the bow is that the bow hair does not float on the string between the notes, but still needs to be rubbed against the string to produce sound, but the pressure of the string is changed; in the process of playing the bow, the bow does not stop moving, The sound continues uninterrupted.

3. In the slurred bow, the right hand makes a similar action of weakly closing the bow, that is, the fingers are slightly relaxed to reduce the pressure on the string. When the sound momentum is weakened and not broken, the right hand is followed by a weak bowing action, and the slurred bow is moved. It seems to be broken and continuous, and its effect is more obvious than that of a slurred, and it is more coherent and soft than a bow. Wave bow is often used in lyrical music when the cohesive slurs and slurred clauses are used.