How Piano Wires Changed Through The Centuries

Even as the wires used in pianos changed from iron to steel, sound quality has remained largely the same. Getty Images

How Piano Wires Changed Through Centuries -- Discovery

Since Mozart's time, piano wires have changed in content -- but very little in quality, research shows.

* The wire inside pianos has undergone significant changes between the piano's origins in the early 1700s until the late 1880s.
* Research suggests that piano designers used music wire to reach similar harmonic levels despite working with different metals.
* Piano designers balance tension and stiffness of music wire, but many other factors are considered as well.

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