Beats are recorded in fractions, with numerator representing the beat of each bar and denominator representing the notes of each beat. For example, 2/4 beat is pronounced as "4/2 beat", which means "take a quarter note as a beat and beat twice every small beat"; 6/8 beats, "6/8 beats" and "8 beats per bar, with an eighth note as a beat". This notation is different from mathematical music score and cannot be simplified, otherwise it will change the sound value and beat of each beat per minute. For details, please refer to the basic music theory textbook.

Melody:

Melody is a series of sounds connected by a series of sounds with different pitches (or the same pitch) in a specific high-low relationship and rhythm relationship. Melody is equivalent to the concept of visual lines on human hearing. Melody is one of the main elements that reflect the thoughts and feelings of music works.

The melody in music is:

The main idea or the whole idea of music is organized by the relationship between tone and rhythm, which is carried out in a horizontal monophonic part. There are many independent tones called melody. In layman's terms, it is music and songs with a single tone. Melody is the soul and foundation of music.

Melody can be divided into two categories: original sound and instrumental music. Vocal music is for human voice. Therefore, it is closely related to human voice and language. Its characteristics are: narrow range, simple rhythm, rich aria and rich lyrics; Musical instrument plays musical instrument melody, which is directly related to the structure of musical instrument.

Generally speaking, instrumental music has a wide range of melodies, great changes in rhythm, speed and intensity, and rich techniques. Piano, for example, has the widest range. Melody is composed of many basic musical elements such as mode, rhythm, rhythm, dynamics and timbre.

Music score is a method of recording music with symbols by printing or handwriting. Different cultures and regions have developed different notations. Notation can be divided into two categories: recording pitch and recording fingering. Staff, notation and Braille are all musical scores that record the pitch. The six-line spectrum of guitar and the subtraction spectrum of guqin belong to the spectrum of recording fingering. Traditional music scores are mainly copied on paper, but now there are computer programs that can make music scores.