Time: In the beat, many notes are based on one beat (this is also called "unit beat"). This important time period - one beat, is the basis of music. It is represented by a specified note. That is to say, various different notes, such as half notes, quarter notes, eighth notes, etc., are used as the basic beat, and then the beats are gradually stronger and weaker. Let me explain in the most popular terms what a beat is.

"Pat" in simple terms means you shoot with the palm of your hand. If you use two hands to shoot, then one photo and one close is called one photo. If you just tap it down, it is called half a photo. If you lift it up again, it is also half a photo. So it counts. One up and one down add up to one beat.

(Equal to half a beat plus half a beat)

Take this score as an example. This is a 4/4 time score. 4/4 time means that one beat is a quarter note, and there are four beats in each measure. , each of the 1155 in the first section is one beat, which adds up to four beats, and each subsequent section is also four beats