Time signature is a symbol used in music score, which is marked in the form of fraction. Every score is preceded by a time symbol. If the middle rhythm changes, the changed time symbol will be marked, just like a score, such as 2/4, 3/4, etc.

Denominator means that a beat is represented by a quarter note, for example, 2/4 means that a beat is represented by a quarter note, and each bar has two beats.

Molecules represent how many beats there are in each bar. As mentioned above, 2/4 beat means taking a quarter note as one beat, 2 beats in bars, 3/4 beats in quarter notes, and 3 beats in each bar ... The reading method is to read the denominator first, then the numerator. For example, 2/4 is 42 beats, 3/4 is 43 beats, and 6/8 is 86 beats.

The time signature should be marked at the beginning of the music, behind the first line of the music.

When the time signature is marked on the score sheet, three lines (the line in the middle of the staff) should be used as the horizontal lines of the score, and there is no need to draw horizontal lines. If you don't change the beat halfway, just write it at the beginning. If you change the beat halfway, you need to mark a new beat number.

One, two beats.

Two or four beats is a quarter note, and each bar has two beats. It's called 2/4 beat, and there are two beats in a bar. The first beat is a strong beat and the second beat is a weak beat. In a bar, there is only one strong beat and one weak beat, and then each bar repeats itself. This 2/4 rhythm is very suitable for parades, so most marches adopt this 2/4 beat form.

Two, three-quarters time.

Take a quarter note as a beat, and there are three beats in a bar, which is called 3/4 beat. That is, a bar has a strong beat and two weak beats, and each bar is repeated. The first beat is a strong beat, and the second and third beats are weak beats, which are 3/4 beats. This rhythm is suitable for rotation, so it is often used in waltzes.

Three, four, four.

It takes a quarter note as a beat, and each bar has 4 beats, which is called 4/4 beats. In the 4/4 beat, the first beat is a strong beat, and the second beat is.

Weak beat, the third beat is the second strong beat, and the fourth beat is the weak beat.

Four beats, six beats/eight beats.

Different from 2/4 and 3/4 beats, it takes an eighth note as a beat, and each bar has 6 beats, so that in each bar, the first beat is a strong beat, the second and third beats are weak beats, the fourth beat is a strong beat, and the fifth and sixth beats are two weak beats, so that each bar has 6 beats and appears repeatedly.