1/4 beat: 1/4 beat is a quarter note, 1 beat per measure.

2/4 beat: 2/4 beat is a quarter note, with 2 beats per measure, and there can be two quarter notes. Strong, weak.

3/4 beat: 3/4 beat is a quarter note, with 3 beats per measure, and there can be three quarter notes. Strong, weak, weak.

4/4 time: 4/4 time is a quarter note as one beat, each measure has 4 beats, and there can be 4 quarter notes. Strong, weak, sub-strong, weak.

3/8 beat: 3/8 beat is an eighth note, and each measure can be one beat, but there are actually 3 beats. There can be 3 eighth notes. Strong, weak, weak.

6/8 beat: 6/8 beat is an eighth note, and each measure can be divided into two major beats. However, in fact, each measure has 6 beats, and there can be 6 eighth notes. Strong, weak, weak; second strong, weak, weak.

Extended information:

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).

The duration of a beat is a relative concept of time. For example, when the specified speed of the music is 60 beats per minute, each beat takes one second, and a half beat is one-half second; when At a specified speed of 120 beats per minute, each beat is half a second, a half beat is a quarter of a second, and so on.

After the basic duration of the beat is determined, the notes of various durations are associated with the beat. For example, when a quarter note is used 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 a half beat, and a sixteenth note is equivalent to a quarter beat; if If an eighth note is considered a beat, a whole note is equivalent to eight beats, a half note is equivalent to four beats, a quarter note is equivalent to two beats, and a sixteenth note is equivalent to half a beat.

Baidu Encyclopedia—Music Beat