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Resonance – Definition
Resonance is the natural amplification of sound that occurs when an object vibrates in response to another vibration at a matching or closely related frequency.
What is Resonance?
In acoustic instruments, resonance enriches tone and increases volume. On a piano, the strings, soundboard, and wooden body all contribute to the instrument’s characteristic sound. When one string vibrates, other strings with related frequencies may also begin to vibrate through sympathetic resonance, creating a richer and more complex tone.
Resonance is one of the key reasons why acoustic pianos sound full, warm, and expressive.
How is Resonance used in piano playing?
Pianists experience resonance most clearly when using the sustain pedal. With the dampers lifted, unplayed strings are free to vibrate in sympathy with the notes being played, adding depth and natural reverberation to the sound.
Understanding resonance helps pianists use pedaling more effectively and create richer, more expressive performances.