The bar rhythm of the beat will not change.

Music beat refers to the combination of strong beats and weak beats, specifically the total length of notes in each section of the score. Common beats include 1/4, 2/4, 3/4, 4/4, 3/8, 6/8, 7/8, 9/8, 12/8, etc. The length of each section is fixed. The tempo of a piece of music is fixed at the time of composition and will not change. A piece of music can be composed of a combination of several beats.

In music, time is divided into equal basic units, and each unit is called a "beat" or a beat. The duration of a beat is represented by the duration of the note. The duration of a beat can be a quarter note (that is, a quarter note is a beat), a half note (a half note is a beat), or an eighth note. diaeresis (eighth note as one beat).

Introduction to sections

Music always alternates between strong beats and weak beats. This alternation cannot be chaotic or arranged arbitrarily, but forms a minimal rhythmic organization according to certain rules. section, and then cycle back and forth based on that. For example, when there is only one weak beat between two strong beats, it is called "two beats", and 2/4 beats are of this type.

When there are two weak beats between two strong beats, it is called "triple beat", like 3/4 and 3/8, and when there are three weak beats between two strong beats, it is called "four beats" , the common one is 4/4. Two sections are separated by a "bar line". The bar line is a thin line perpendicular to the staff, with five lines on top and one line on the bottom, just cutting off the staff.