unpitched sound

unpitched sound

[¦ən‚pichd ′sau̇nd]
(acoustics)
Sound that includes a wide range of frequencies and thus does not have a definite pitch.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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We examine guiding questions such as, "Does the piece [acoustic environment] include mostly pitched or unpitched sounds? ...
The Orff approach and Canadian music education curriculum for the 21st century
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