To make sure that your piano keeps in its best form, you have to clean the keyboard from time to time. How frequently you clean your piano keyboard depends on how often it is used. For example, piano teachers may be required to tidy up the accumulated fingerprints of the students handling the piano each week, whereas a seldom-used piano keyboard may be required to be cleaned only once or twice in a year.
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Oskar Kokoschka
Ray Charles
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Max Ernst
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