The piano is an acoustic, stringed musical instrument invented in Italy by Bartolomeo Cristofori
around the year 1700 (the exact year is uncertain),
in which the strings are struck by wooden hammers that are coated with a softer material (modern hammers are covered with
dense wool felt; some early pianos used leather).
It is played using a keyboard, which is a row of keys (small levers)
that the performer presses down or strikes with the fingers and thumbs of both hands
to cause the hammers to strike the strings. The piano is widely employed in classical, jazz,
traditional and popular music for solo and ensemble performances, accompaniment, and for composing, songwriting and rehearsals.
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