Fugue is a polyphonic music genre popular in the Baroque period, also known as "Escape".

1. Theme:

The main musical material that runs through the entire song in monophonic form.

2. Counterpoint:

Music materials that form a counterpoint relationship with the theme. Afterwards, the theme and antithesis can appear alternately in different voices, and there are often transitional phrases between themes for musical contrast.

3. The form of music:

The most complex and rigorous.

4. Basic characteristics:

Make a simple and characteristic theme appear once in each part of the music in turn (presentation part); then proceed to develop with part of the theme's motives Afterwards, the theme and the insert appear again and again in different new keys (development part); until the final theme returns to the original key again, and often ends with a coda.

The composer used various polyphonic techniques to subject the theme to various tonal and rhythmic changes, forming a highly unified musical image. The playing of fugue is of great help in training piano students' polyphonic musical thinking.

Polyphonic music:

A type of polyphonic music. The work contains two or more (inclusive) independent melodies, which are harmoniously combined through technical processing. Such music is called polyphony.

Polyphonic music has a long history. The earliest polyphonic music existed in church chants in the Middle Ages. The choir sang different melodies on different parts when singing carols. Later, the Dutch School of Music in the Netherlands further developed the theory and writing techniques of polyphony. One of the composers, Guillaume Dufay, created the writing and technique of "quadruple harmony". It paved the way for the subsequent counterpoint theory.