1. In simplified musical notation, there are seven basic symbols used to express the pitch and relationship of sounds, namely 1, 2, 3, 4, 5, 6, and 7, which represent do and re respectively. ,mi,fa,sol,la,si.

2. It is impossible to express numerous high and low tones using only seven notes. In simplified musical notation, adding a "·" above the basic note means that the note rises by one octave, which is called treble; adding two ":" means that the note rises by two octaves, which is called doubling. Treble.

Add a "·" below the basic note to indicate that the note is lowered by one octave, which is called bass; add two ":" to indicate that the note is lowered by two octaves, which is called bass. Double bass. There are five registers on the piano keyboard, from left to right, corresponding from treble to bass.

3. Decoration notes: The symbols that represent the rest (pause) of music in music scores are called rests. The rest symbol in simplified musical notation is represented by O. Mark "gt;" or "□" or "sf" on the note, indicating that the note must be sung (played) strongly

When the two marks "gt;" and "□" are at the same time When present, it means stronger. The end line uses two vertical lines, one thin line and one thick line in parallel, with the thin one in front and the thick one in the back, indicating the end of the music.

4. Two Tigers simplified score, the beat in the red box indicates the rhythm of the song you play, that is, each measure is four beats. The green box indicates sol because of long press for two beats. The yellow box indicates that two notes are pressed simultaneously on one beat, that is, a chord.

5. The purple box is a rest symbol. The green box is one octave lower than the note.

Generally speaking, there are four basic elements in the composition of all music, the most important of which are "the pitch of the sound" and "the length of the sound":

1. High and low: Any piece of music is composed of alternating high and low sounds. Looking directly at the piano, the keyboard sound toward the left is lower, and the keyboard sound toward the right is higher.

2. The length of the sound: In addition to the pitch of the sound, another important factor is the length of the sound. The marking of the pitch and length of the sound determines which piece of music is different from other pieces of music, and therefore becomes the most important basic element that constitutes music.

3. The intensity of music: The intensity of music is easy to understand, also called intensity. There will always be some notes in a piece of music that are stronger and weaker in some places. Changes in intensity are one of the factors that express emotions in musical works.

4. Sound quality: It can also be called timbre. That is, an instrument or human voice that makes music. Male and female voices singing the same melody have different timbres; violins and pianos have different timbres.

The above four items form the basic elements of any piece of music. It should be said that simplified musical notation can basically mark these basic elements correctly.