1. Whole note: A hollow white note without a stem or tail is called a "whole note". It is the big brother of the note family. The duration of other notes is shorter than it and must be based on it. Divide it into two halves.

2. Half notes: White notes with stems and no tails are called "half notes". It is only half the length of a whole note, equal to 1/2 the duration of a whole note;

3. Quarter note: A black note with a stem and no tail is called a "quarter note". It is half smaller than a half note, equal to 1/4 of the duration of a whole note;

4. Eighth note: A black note with a stem and a tail is called an "eighth note". It is half smaller than a quarter note, equal to 1/8 of the duration of a whole note;

5. Sixteenth note: A black note with a stem and two tails is called a "sixteenth note" note". It is half smaller than an eighth note, equal to 1/16 of the duration of a whole note;

6. Thirty-second note: The black note with stems and 3 tails is called "thirty" Half note”. It is half smaller than the sixteenth note and equal to 1/32 of the duration of the whole note;

7. Sixty-fourth note: The black note with four stems and tails is called "sixty-four" diaeresis". It is one half smaller than a thirty-second note and equal to 1/64 of the duration of a whole note.

8. The sharp sign (#) means to raise the basic tone level by a semitone;

9. The flat sign (b) means to lower the basic tone level by a semitone;

< p>10. The double rising mark (×) means raising the basic tone level by two semitones (one whole tone);

11. The double falling mark (bb) means lowering the basic tone level by two semitones ( (a whole tone);

12. The restoration mark (ヰ) means to restore the sound that has been raised or lowered;