Music beat refers to the combination law of strong beat and weak beat, which specifically refers to the total length of notes in each bar in the score. A piece of music can be composed 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 the beat is expressed by the duration of the notes. The duration of a beat can be a quarter note (that is, taking a quarter note as a beat), a quarter note (taking a quarter note as a beat) or an eighth note (taking an eighth note as a beat). The duration of the beat is a relative concept of time. For example, when the specified speed of music is 6 beats per minute, the time occupied by each beat is one second, and the half beat is one-half second; When the specified speed is 12 beats per minute, the time of each beat is half a second, half a beat is a quarter of a second, and so on. After the basic time value of the beat is determined, the notes of various time values are associated with the beat. For example, when a quarter note is taken as a beat, a whole note is equivalent to four beats, a half note is equivalent to two beats, an eighth note is equivalent to half a beat, and a sixteenth note is equivalent to a quarter beat; If the eighth note is taken as a beat, the whole note is equivalent to eight beats, the second note is four beats, the fourth note is two beats, and the sixteenth note is half a beat.