The meanings of the various symbols in the score are as follows:
1. The double-rising mark (×) means raising the basic note level by two semitones (one whole tone).
2. The double flat mark (bb) means lowering the basic tone level by two semitones (one whole tone).
3. The sharp sign (#) indicates raising the basic pitch level by a semitone.
4. Flat mark (b) means lowering the basic pitch level by a semitone.
5. The restoration mark (ヰ) means to restore the sound that has been raised or lowered.
6. pp (very weak)
7. p (weak)?
8. mp (medium weak)
9 , mf (medium strong)
10. f (strong)
11. ff (very strong)
12. sf (extremely strong)
13. ∨ is called the inhalation mark. It usually appears between two measures, and occasionally it appears between two notes.
14. gt; called diminution. Often appears in a certain phrase.
15. ▲ is called an accent mark, which means that this sound should be strong and emphasized when singing to express the emotion of the song.
Extended information:
1. Thirty-second note: The black note with a stem and three tails is called a "thirty-second note". It is half smaller than the sixteenth note and equal to the duration of 1/32 of the whole note;
2. 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.
3. Music symbols are used to express different characteristics of sounds, such as pitch, duration, volume, expression marks, and tips on performance techniques. The essence of music is goodness, and notes are the building blocks that build the castle of goodness.
Reference: Baidu Encyclopedia-Music Symbols