Gwrthrychau elusennol
FOR THE ENCOURAGEMENT OF JAZZ MUSIC BY THE ANNUAL PRESENTATION OF A MEDAL TO A MUSICIAN SELECTED FOR UNDOUBTED EXCELLENCE AS EXHIBITED OVER A SUBSTANTIAL PERIOD OF TIME IN THE FIELD OF JAZZ MUSIC EITHER AS A COMPOSER, OR AS AN EXECUTANT OR FOR SIGNIFICANT ACHIEVEMENT BY A YOUNG MUSICIAN(UNDER THE AGE OF THIRTY YEARS) IN THE FIELD OF JAZZ MUSIC.