Usually if the rhythm of a song remains the same, you can get a value by pressing this remake. The BPM used in dance online games, that is, the remake every minute, can be an integral multiple of your own value.
Of course, there are also songs with variations before and after or in the middle, such as "The Sun and Moon in My Heart" (sung by Wang Leehom). The chorus and climax obviously belong to two rhythms; Listen to his songs more, you will know, and you will adapt. He is a musician who is used to two or four remakes.
Extended data
Music always alternates between strong beats and weak beats. This alternation cannot be arranged randomly, but a bar is organized according to a certain law to form the smallest beat, and then repeated on this basis.
For example, when there is only one weak beat between two strong beats, it is called "double beat", and 2/4 beat is this type; When there are two weak beats between two strong beats, it is called "triple beat", like 3/4 and 3/8; There are three weak beats between two strong beats called "four beats", and the common one is 4/4.
These two bars are separated by a bar line. The bar line is a thin line perpendicular to the spectrum table. The top five lines and the bottom one line just cut off the spectrum table. No matter how far the upper and lower lines deviate from the spectrum, the bar line cannot exceed the spectrum.
Draw two bars in the last section of the work, and the one on the right is thicker, indicating the end of a work or a paragraph. The beat behind the bar line must be a strong beat. There is only one strong beat in each bar, and the rest are weak beats.
Baidu encyclopedia-music beat