Her pure soprano rose up to meet the rules of St. Benedict and the doves on the stained-glass window behind her.
Up to then, pure soprano, and superb.
Ms. Watson's pure, agile lyric soprano negotiates the coloratura runs of her music with impressive ease.
Judith Blegen, Wednesday's Gretel, has a sweet, pure soprano but not one that carries well in this house.
Anita Johnson's pure soprano gave "Summer Time" its customary magic.
He spoke precise English but the voice was pure soprano.
All three singers, though highly individual in vocal color and approach, can function as high-flying sopranos, pure and bright.
It was nice to hear Véronique Gens's pure soprano.
It incorporates Ann Savoy's rich alto and the pure soprano of Ronstadt.
Ms. Futral is a purer high soprano, but a good one, in no way bland.