The piano was invented around 1700 in Florence, Italy, by Bartolomeo Cristofori. Its original name was the fortepiano, combining the Italian words for loud (forte) and soft (piano), which highlighted its revolutionary ability to vary volume based on the player's touch—a feature the harpsichord lacked.

An acoustic piano is a complex machine with over 12,000 individual parts. Its steel strings are held under immense pressure, creating a combined tension of up to 30 tons that must be supported by a heavy cast-iron frame. Many grand pianos feature a middle sostenuto pedal, which allows the player to sustain select notes while playing others without a blur. The upright piano, a more compact version designed to fit in smaller homes, was invented by John Isaac Hawkins in 1800, making the instrument widely accessible. The world's largest playable piano, built by Adrian Mann, is over 18 feet long.

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