Represented by high and low points.

The small dot "." is known as the most vivid symbol in music. It means raising the basic note symbol by one note group, that is, by one pure octave. Marking two dots means raising two sound groups, that is, raising two pure octaves.

If it is placed directly below the note, it means lower, which is called the bass point. It means lowering the basic note by one sound group, that is, lowering it by one pure octave. Marking two dots means lowering the basic note symbol by two tone groups, that is, lowering it by two pure octaves.

In addition, in simplified musical notation, the basic symbol without a dot is called the alto. Extended information

Key signature

These marks are recorded after the clef in a certain order and position. These marks are called key signatures. The key signature always uses only the same type of diacritical mark, that is, sharp or flat.

The key signature of simplified musical notation is generally represented by 1 equal to A, B, C, D, E, F, G. For example, 1=C means that the musical notation is notated in the key of C. If you want to express To upgrade the number, add # or b (flat) before the letter:

1=C 2=D 3=E 4=F 5=G 6=A 7=B

Baidu Encyclopedia-Simplified Musical Notation