Question

What should a piano tuner do to correct the sound of a string that is flat, that is, it plays at a lower pitch than it should?

• A. Tighten the string to make the fundamental frequency higher
• B. Tighten the string to make the fundamental frequency lower
• C. Loosen the string to make the fundamental frequency higher
• D. Loosen the string to make the fundamental frequency lower
• E. Find a harmonic closer to the desired pitch

Answer 1

Answer: (A)

Tighten the string to make the fundamental frequency higher

Frequency of the sound is direction proportional to square root of Tension in the string. So to increase the pitch (increment in the frequency) we must increase the tension in the string by tightening it.