1. The double rising sign (×) indicates that the basic sound level is raised by two semitones (a whole tone).
2. The double flat sign (bb) indicates that the basic tone level has been reduced by two semitones (one whole tone).
3. The rising symbol (#) indicates that the basic volume is raised by a semitone.
4. The falling tone symbol (b) indicates that the basic volume is lowered by a semitone. 5. The lowering mark (ヰ) indicates that the raised or lowered voice is lowered. 6.pp (very weak), P (weak), mp (moderately weak), mf (moderately strong), F (strong), ff (very strong), sf (extremely strong). 7, ∨ called inhalation mark. Generally, it appears between two bars, and some appear between two notes. 14 、>; This is called fading. Often appear in phrases. 15, ▲ is called stress mark, which means that this sound should be strongly aggravated when singing to express the artistic conception of the song.