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The Sound Quality Effect of the Una Corda Pedal on a Piano

Physics

7 Pages SACE - South Australian Certificate of Education Year 11 Essay / Project Year: 2017

The purpose of the subsequent investigation folio is to comprehend the distinction of the effect of the una corda pedal on a typical upright piano. Although most competent pianists are familiar with the correct usage of the una corda pedal, and comprehend that the una corda pedal is denoted with the term, soft pedal , many do not understand the physics behind the una corda ’s tonal difference in sound. As pianos have been the subject of many experimental and theoretical investigations (Suzuki and Nakamura, 1990) , as pianos are epitomic subjects. It is known that the una corda pedal operates a mechanism that displaces the hammers’ resting position closer to the strings. Hence reducing the distance, and in turn speed, of which the hammers must travel to strike the strings to elicit sound, this results in reduced volume, as less the force applied has less time to effect.

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