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sixth chord

American  

noun

Music.
  1. an inversion of a triad in which the second note (next above the root) is in the bass.


sixth chord British  

noun

  1. (in classical harmony) the first inversion of the triad, in which the note next above the root appears in the bass See also added sixth

"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

Etymology

Origin of sixth chord

First recorded in 1870–75