do, re, mi, fa, sol, la, si. Music is an art form and cultural activity whose medium is sound organized in time. Its basic elements include the pitch of the sound, the length of the sound, the strength and timbre of the sound. These basic elements are combined with each other to form the commonly used "form elements" of music.

For example: rhythm, melody, harmony, as well as intensity, speed, mode, musical form, texture, etc. The formal elements that constitute music are the means of expression of music.

There are a lot of basic knowledge of music, and everyone needs to master the following:

Music sound: vibration rules, sounds with obvious high and low sounds.

Noise: The vibration is irregular and the sound is not obvious in pitch.

Music system: the sum of the musical tones used in music.

Tone level: Each sound in the musical system is called a level. It includes basic pitch levels and varying pitch levels.

Semitone: On the piano keyboard, the pitch relationship between any two adjacent keys is a semitone.

Whole tone: On the piano keyboard, the pitch relationship between any two keys separated by one key is a whole tone.

Sound name: the name of the sound. Represented by C, D, E, F, G, A, B.

Roll call: The name used when singing music. Sing with do, re, mi, fa, sol, la, si.

Sound group: The seven basic sound levels are repeated cyclically, producing many sounds with the same name but different pitches, so they can be divided into several groups, and these groups are called sound groups.

Medium: the absolute height of each note in the musical system. At present, the temperament widely used in countries around the world is the twelve equal temperament, and there are also the pure temperament and the temperament of fifths.