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To accommodate
both the design of the keyboard and the need to be
able to play in all keys so that everything sounds
acceptable, the octave on the piano is
mathematically divided into 12 equal parts. This
process is called tempering. The specific type of
tempering commonly used in piano tuning is called
equal temperament. This does produce out of tune
intervals. For example, perfect 5ths are not perfect
but slightly narrow. |
