Piano (dynamic)
The dynamic mark p — soft, but not a fixed decibel level
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Piano (p) is the dynamic mark for soft, paired with forte. P is not a fixed decibel level: the p of chamber music and the p of a symphony sit at completely different sound pressures, and the same instrument's p differs between registers.
It is not "weak" either: a good piano still has core and projection, only at a lower volume. The usual mistake is to make p as soft as possible — softness that loses colour falls apart; dynamics are proportions, not absolutes.
Read deeper → dynamics
Sources
- piano 作为力度记号的含义与相对性，参 The New Grove Dictionary of Music and Musicians, "Dynamics"；本文为原创表述
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