Symbols of music include:

1. Full note: A hollow white note without a stem and a tail is called a "full note".

2. Binary notes: White notes with stems and no endings are called binary notes. A duration equal to 1/2 of the whole note.

3. Quarter notes: Black notes with stems and no endings are called "quarter notes". A duration equal to 1/4 of the whole note.

4. Octave note: A black note with a stem and a suffix is called "Octave note". A duration equal to 1/8 of the whole note.

5. Sixteenth notes: Black notes with stems and two endings are called "sixteenth notes". A duration equal to 1/16th of the whole note.

mark of diacritical mark

1: A sharp sign (#) indicates that the basic tone level is raised by a semitone.

2: A flat sign (b) indicates that the basic sound level is lowered by a semitone.

3: The re-rising sign (×) indicates that the basic tone level is raised by two semitones (a whole tone).

4: the sharp drop mark (bb) indicates that the basic tone level is lowered by two semitones (one whole tone).

5: reduction mark (? ) means to restore the sound that has been raised or lowered.