How many keys are there in a modern piano?
64
88
102
110
A modern piano has 88 keys. This covers a wide range of seven octaves plus a minor third. Only one instrument spans more octaves: a pipe organ (up to ten).
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Answers by country
64
88
102
110
answers
Switzerland
50
Republic of Ireland
33
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24
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552
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57
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522
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238
Austria
125
Canada
59
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28
Romania
15
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24
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17
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14888
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21
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22
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126
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75
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19
Unknown
20