pitch pipe(redirected from tuning pipe)
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A small pipe that, when sounded, gives the initial pitch for a piece of music or the standard pitch for tuning an instrument.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Instruments) a small pipe, esp one having a reed like a harmonica, that sounds a note or notes of standard frequency. It is used for establishing the correct starting note for unaccompanied singing
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
a small flute or reed pipe producing one or more pitches when blown into.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.