Pp (very weak), P (weak), mp (moderately weak), mf (moderately strong), F (strong), ff (very strong), sf (extremely strong).
∨ This is called inspiratory sign. Generally, it appears between two bars, and some appear between two notes. When singing, when you meet this mark, you should inhale and sing the next sentence. When you encounter this mark when playing the piano, you should lift it with your wrist strap and then put it down to continue playing.
Extended data:
Different notes represent different time values. The commonly used notes are full notes, half notes, quarter notes, eighth notes and sixteenth notes. The durations of binary notes, quarter notes, eighth notes and sixteenth notes are 1/2, 1/4, 1/8,116 of the whole notes, respectively.
If you add a point after a note, the note will last longer than without a point 1/2.
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