Beat: Equal time segments with accent (strong tone) and unaccented (weak tone), repeated in a certain order, are called beats. The meaning of beat in music is to organize music with strong and weak relationships. Each complete beat constitutes a measure of music. The one with emphasis is called strong beat, and the one with no emphasis is called weak beat. Each time segment that makes up a beat is a unit beat. Note that the beat is not the beat. It is the premise and conditions for the production of beats. It's a musical rule. A definition that provides strong, weak, and organized music. Most people often use beats as beats, which is wrong. Rhythm is the prerequisite for producing beats, and beats are produced in the definition of beats. Beat is a big concept with a large scope, while beat is a small concept. When it comes to music specifically, it means what kind of beat the music has.
Beat: The unit beat is represented by a fixed note, which is called beat. Expressed as fractions. The numerator represents the number of units in the measure, that is, how many beats there are, and the denominator represents the note duration of the unit beat. Is it a half note or a quarter note.
In layman's terms, beats are accents and weak sounds that alternate with a certain pattern, so there are 2 beats and 3 beats. We stipulate that the note duration of the unit beat is a quarter note, so that there is a beat. So 2/4 and 3/4 time signatures have become a very important part of music, and this symbol is called the time signature.
The time signature not only expresses the pattern of strength and weakness in the rhythm, but also stipulates the duration of the unit beat. In this way, there will be a regular pattern of alternating strong and weak beats of 2 or 3 beats in one section. This is the scope of the beat. Then it is stipulated that a quarter note is a beat, which becomes the beat of music.
The beats and beats of music are divided into single beats and single beats, which are beats and beats with 2 or 3 unit beats in each section. In monometer and monometer, the accent occurs only once. Pianissimo appears once and twice. When two weak notes appear, they are connected together in order to delay the time of the accent cycle. Let the 2/4 sonorous music (strong and weak) have more soft elements in the 3/4 music (strong and weak)!
But the strengths and weaknesses of 2/4 and 3/4 are different, because the two weak notes of 3/4 appear together, so the music changes entirely due to the change of the beat, 3/4 beat Music still cannot replace the 2/4 beat to express the softness of one strong and one weak that 2/4 wants to express, so the softness of the 2/4 beat still cannot be released musically, and the softness of the 3/4 beat cannot be released musically. It cannot be strengthened at a deeper level, so a composite beat appears!
The same single beat (beat) is synthesized together, and a beat (beat) with more than two accents is called a polybeat (beat).
In this way, 2/4 time has a 4/4 time signature, and 3/4 has a 6/8 time signature (it is a musical habit to use eighth notes after synthesizing 3 time signatures).
The strength and weakness rules of 4/4 time are the same as those of 2/4 time, except that the second strong beat becomes the second strongest. In this way, the original 2/4 with a strong march style has been changed to 4/4, which is much softer, but without losing the rhythmic nature of alternating strong and weak 2 beats. A lot of popular music nowadays is in 4/4 time.
The 6/8 time signature is even softer based on the original softness. In order not to weaken the nature of the music, the speed of 6/8 has generally been consciously strengthened.