A Dictionary of Music and Musicians/Corona
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CORONA. A synonym for Fermata or Pause, of somewhat rare occurrence; a familiar instance of its use is in the 'Virgo virginum' of Dvořák's 'Stabat Mater,' in which Senza Corona is placed over the last note of the movement in the vocal parts, to emphasize the fact that the instruments alone hold out the pause.
[ M. ]