"Screw top" in music refers to gradually tightening the original phrase until it finally forms a concise top.

Screw knotting is a technique in music creation, such as the third section of the national orchestral piece "Dance of the Golden Snake". The upper and lower sentences echo each other, the sentence length is reduced layer by layer, the speed is gradually accelerated, and gongs and drums are added. The rhythm of percussion instruments such as cymbals, wooden fish, etc. raises the mood gradually to the climax of jubilation. It vividly reproduces the joyous scenes of dancing dragons and loud gongs and drums during folk festivals, and is full of distinctive national character and life atmosphere.

Extended information

Melodic development techniques

1. Repetition

Repetitive development techniques are the basic means of melody development. Repetition development techniques include complete repetitions, variation repetitions, molding (shifted repetitions), compression, stretching, etc.

Completely repeated development techniques can be used within or between phrases. Compared with complete repetition, mold progression can further develop the idea. However, in song creation, due to limitations in length and vocal range, it is not advisable to use too much. If misused, the music will be dull and impoverished.

2. The snail knots its head

3. The fish bites its tail

The ending sound of the previous melody has the same structure as the first sound of the next melody. Also called coda style and solitaire style, it is a structural form of traditional Chinese music and a music creation technique.