a note that is foreign to a harmony and is introduced between two successive chord tones in order to produce a melodic transition.
Origin of passing note
First recorded in 1720–30
Also called passing tone.
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US passing tone
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012