Vension symbol: mp, p is medium, p is weaker.
The fixed order of strength symbols from weak to strong is: PP Pianissimo is very weak, P Piano is weak, mp mezzo-Piano is medium weak, mf mezzo-forte is medium strong, f forte is strong, ff fortssimo is very powerful.
Piano means weak, abbreviated as P. The more P, the weaker. There can be up to 5 P, which is extremely weak. Forte means strong, abbreviated as f. The more f's, the stronger. If there are five f's marked on the score, it is quite strong, and the performer must play with all his strength.
Extended information:
Practical application of intensity:
In performance, intensity is of great significance to part processing. Main-key music often has melody , middle voice and bass and several other parts. If the melody uses mf, the accompaniment part uses p to set off the main melody; if the accompaniment part uses mf, the melody part uses f.
The melody lines should be prominent, the middle part should be quiet and full, the bass should be solid, clear and elastic. This requires different strength control of both hands, and even different fingers of one hand have different strengths when completing different parts.
In polyphonic music, the voices are intertwined and coordinated, and the emphasis is on one after another, the virtual and the real, so the voices are more independent, and different voices must achieve intensity, color coordination and contrast to achieve perfection. The performance of this kind of works.
Baidu Encyclopedia - Strength Terms
Baidu Encyclopedia - Strength