Bartolomeo Cristofori
He started to experiment with hammer mechanisms in 1700. His earliest known piano was called  (English: "A keyboard instrument which makes soft and loud sound"). The instrument became popular outside of Florence. He sold pianos to customers in Florence and Rome. Gottfried Silbermann learned of Cristofori's invention. He started to make his own pianos. Lodovico Giustini published 12 sonatas for the instrument in 1732. This was the first collection of music specifically for the piano.