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Meaning of a cappella

a cap•pel•la

Pronunciation: (ä" ku-pel'uIt.ä" käp-pel'lä), [key]
— Music. Music.
  1. without instrumental accompaniment.
  2. in the style of church or chapel music.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.