Keyboard
Keyboard is an electrical instruments with lots of keys in it.Each key generates different tones.To differentiate the keys are given with two colours.One black and other white.The keyboard also follows the same pattern,the seven chords. "C,D,E,F,G,A,B" The bigger version of keyboard is called "Piano". It is played with theforce of the air pressure.Electricity is not required to play a Piano.
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