1. Rhythm:

Combine a disordered beat flow into different patterns, integrate different parts of different lengths that are often repeated, and the musical melody progresses in scales, notes, or The length and strength of syllables, etc. The rhythm of music is often compared to the skeleton of music.

2. Melody:

The primary element of music. Usually refers to an organized and rhythmic sequence of several musical sounds formed through artistic conception. ?[1]?It is performed according to a single voice composed of a certain pitch, duration and volume and having logical factors.

3. Harmony:

A sound combination formed by two or more different tones sounding at the same time according to certain rules.

4. Tone:

It means that the frequency of different sounds always has distinctive characteristics in terms of waveforms. Different sound emitters have different timbres due to their different materials and structures. For example, pianos and violins are different from human voices.

Extended information

Related introduction:

The beat in rhythm is the heavy beat and weak beat in music that are repeated periodically and regularly. In Chinese opera, the beat is called "ban, eye", "ban" is equivalent to the strong beat, and "eye" is equivalent to the sub-strong beat (middle eye) or weak beat.

Melody consists of two elements, namely melody line (or pitch line) and rhythm. In the continuous melody progression, various linear or curved progressions are formed due to the direction of the pitch. These progressions are similar to the extension or ups and downs of lines in the picture, so they are called melody lines;

About the sound In terms of time: Only when the successive sounds of different pitches (i.e. melody lines) are combined with the length, speed, pause and other expressive functions of various musical rhythms can the melody form various syntaxes and structures of music.

Baidu Encyclopedia - Rhythm

Baidu Encyclopedia - Melody

Baidu Encyclopedia - Harmony

Baidu Encyclopedia - Tone