Definition of piano roll in English:

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piano roll

noun

A roll of perforated paper which controls the movement of the keys in a pianola or similar instrument, so producing a particular melody.
Example sentences
  • Students were asked to replicate select phrases of the performances while following the piano roll graph, either melody or accompaniment alone or both together.
  • When the students played along with the artist's melody while following the piano roll score, they were able to replicate timing and dynamics.
  • Many contemporary virtuosos created piano rolls, including Paderewski, Rakhmaninov, Rubinstein, Gershwin, Debussy, Mahler, Richard Strauss, and Fats Waller.

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