<P> Keyboard instruments do not fit easily into this scheme . For example , the piano has strings , but they are struck by hammers , so it is not clear whether it should be classified as a string instrument or a percussion instrument . For this reason , keyboard instruments are often regarded as inhabiting a category of their own , including all instruments played by a keyboard , whether they have struck strings ( like the piano ) , plucked strings ( like the harpsichord ) or no strings at all ( like the celesta ) . </P>
<P> Keyboard instruments do not fit easily into this scheme . For example , the piano has strings , but they are struck by hammers , so it is not clear whether it should be classified as a string instrument or a percussion instrument . For this reason , keyboard instruments are often regarded as inhabiting a category of their own , including all instruments played by a keyboard , whether they have struck strings ( like the piano ) , plucked strings ( like the harpsichord ) or no strings at all ( like the celesta ) . </P>
why can a piano be considered both a string and a percussion instrument
why can a piano be considered both a string and a percussion instrument
the piano has strings , but they are struck by hammers
the piano has strings , but they are struck by hammers