There are six common types, namely 1/4 beat, 2/4 beat, 3/4 beat, 4/4 beat, 3/8 beat, and 6/8 beat.
1. 1/4 beat: 1/4 beat is a quarter note, 1 beat per measure.
2. 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. 3/4 beat: 3/4 beat is a quarter note. Each measure has 3 beats, and there can be three quarter notes. Strong, weak, weak.
4. 4/4 beat: 4/4 beat is a quarter note. Each measure has 4 beats, and there can be 4 quarter notes. Strong, weak, sub-strong, weak.
5. 3/8 beat: 3/8 beat is an eighth note as one beat. Each measure can be one big beat, but there are 3 beats in implementation. There can be 3 eighth notes. Strong, weak, weak.
6. 6/8 beat: 6/8 beat is an eighth note as one beat. 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:
1. Beat
For example, when the specified music speed is 60 beats per minute, the time occupied by each beat is one second. , half a second is half a second. When the speed is set to 120 beats per minute, each beat takes half a second, a half beat is a quarter of a second, and so on. After the basic time value of the beat is determined, the notes of each time value are associated with the beat.
For example, when a quarter note is a beat, a whole note corresponds to a quarter beat, a half note corresponds to a double beat, an eighth note corresponds to a half note, and a sixteenth note corresponds to a quarter note. diaeresis. If the eighth note is used as a beat, the whole note is equal to 8, the half note is 4, the quarter note is 2, and the sixteenth note is half.
2. Time signature
The time signature is written at the beginning of the music score (at the left end of the first line of clefs, then the clef, if there are keys, the order is key → beat ). The denominator represents the base time of the beat, which is the number of notes in a beat, and the numerator represents the number of beats in each measure.
For example, 2/4 represents a quarter note, with two beats per measure; 3/4 refers to a quarter note, with three beats per measure; 3/8 represents three beats per measure. beat, on the 8th note. There are only two, four, and eight denominators in the beat, that is, half notes, quarter notes, and eighth notes as the basic time of the beat.
3. Measure
When there is only one weak beat between two strong beats, it is called a second beat, and 2/4 beat is of this type; when there is only one weak beat between two strong beats, When there are two weak beats between them, it is called a "triple beat", like 3/4 and 3/8; when there are three strong beats between two strong beats, it is called a "four beat", the common one is 4/4 . A "bar line" separates the two bars.
A line is a thin line perpendicular to the score. The top 5 lines and the bottom line are connected to each other, just cutting off the music sheet. No matter how far the top and bottom are from the music table, the bar line cannot extend beyond the music table. Draw two bar lines in the last section of the piece, the thicker one on the right indicating the end of the piece or paragraph.
4. Single beat and compound beat
All duets and triplets are letter combinations, such as 2/2 (strong-weak), 2/4 (strong-weak) ), 3/4 (strong-weak), 3/8 (strong-weak-weak), etc. If a measure contains more than two single beats of the same type and has more than two accents, it is called a "compound beat" or "complex beat."
Of course, the beat after the bar line is accented and is still called a heavy beat, and the second, slightly weaker beat is called a "sub-beat". The most common overbeat is 4/4 (2/4 + 2/4), and the rhythm feels strong-weak-then strong-weak.
There are also 9 and 12 in a multi-beat. It is worth noting that, except for 4 (such as 4/4), the accent position in a multi-beat is based on a three-beat, that is, every two beats For every remake, there is a remake.
Reference: Baidu Encyclopedia - Beat
Reference: Baidu Encyclopedia - Music Beat