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  Piano

Sigma KEE - Piano

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Piano
A StringInstrument with keys that, when pressed down, activate hammers that, in turn, strike strings.
Relationships      
Parents StringInstrument A StringInstrument is a type of MusicalInstrument that is played by striking strings, either directly as with a guitar, or indirectly with a bow or via keys as with pianos.
Children PianolaA player piano (also known as pianola) is a self-playing piano, containing a pneumatic or electro-mechanical mechanism that operates the piano action via pre-programmed music recorded on perforated paper, or in rare instances, metallic rolls, with more modern implementations using MIDI. The rise of the player piano grew with the rise of the mass-produced piano for the home in the late 19th and early 20th century. Sales peaked in 1924, then declined as the improvement in phonograph recordings due to electrical recording methods developed in the mid-1920s. The advent of electrical amplification in home music reproduction via radio in the same period helped cause their eventual decline in popularity, and the stock market crash of 1929 virtually wiped out production.[from Wikipedia]


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