Piano roll
From The Art and Popular Culture Encyclopedia
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A piano roll is a music storage medium used to operate a player piano, piano player or reproducing piano. Piano rolls, like other music rolls, are continuous rolls of paper with perforations (holes) punched into them. The perforations represent note control data. The roll moves over a reading system known as a 'tracker bar' and the playing cycle for each musical note is triggered when a perforation crosses the bar and is read.
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See also
- Book music
- Music roll is the generic term for similar rolls used to operate fairground organs (or band organs), calliopes, hand-cranked organs, orchestrions and other types of automatically played pipe organ or mechanical organ.
- Scorewriter
- Virtual Studio Technology
- White-Smith Music Publishing Company v. Apollo Company
Unless indicated otherwise, the text in this article is either based on Wikipedia article "Piano roll" or another language Wikipedia page thereof used under the terms of the GNU Free Documentation License; or on research by Jahsonic and friends. See Art and Popular Culture's copyright notice.
