The regular combination of long and short sounds is called rhythm

The combination of notes and rests expresses the length relationship of sounds, that is, rhythm pattern

Strong beats and weak beats of the same duration appear regularly in cycles, which is called beat

The cyclic repetition of strong and weak music fragments expresses the relationship between strong and weak sounds.

Organizing "beats" according to certain strong and weak relationships is called "beats"

"beat" is the basic unit that makes up "section"

Measures are a common unit for counting phrases, sections, and entire pieces of music.

The mark that indicates the beat is called the time signature

For example, 2/4 represents the number of beats in each measure. A quarter note is one beat, and there are two beats in each measure.

Written in the position of the staff, the middle score line cannot be replaced by the third line of the staff

Four-four beats (4/4) can also be written as "C" Two-two beats (2/2) can also be written as "C"

The numerator is 2 or 3

There is only one downbeat in each measure

There are two types of single beats: two beats and three beats.

1/4

It is a special kind of beat, characterized by having only one downbeat per measure.

Mostly used in Chinese opera or rap music

The numerator is 4, 6, 9, 12

A combination of two or more single beats of the same type, each with a downbeat and several sub-downbeats.

Four-four beats and eighty-six beats are the most common, and there are also two-four beats, eighty-four beats, four-six beats, eighty-two beats, etc.

Four beats are a combination of two two beats

Composed of different types of single beats, each measure has two or more downbeats

The numerator is 5, 7, 8, 10, 11

Changes in two or more beats occur one after another

Two situations: once the regular mark is behind the clef; if there is no regularity, the mark needs to be changed.

In polyphonic music, various beats are played simultaneously

Marked as " ", also known as San Pai, free rhythm

It usually appears at the beginning or end of Chinese music, without bar lines or time signatures. Note: "|"">" means singing strong

A slap in the face

Two shots and one glance

Three beats, one board and two eyes (board, head eye, last eye)

Four beats, one board and three eyes (board, head eye, middle eye, last eye)

Six beats: board, head eye, last eye, waist board, head eye, last eye

Three equal parts instead of two basic parts

Equally divided two and four parts replace the basic three parts

The equally divided 567 parts replace the basic 4 parts

Eight equal parts instead of six basic parts

Equally divided 9-15 tuplets instead of the basic 8-part division