| Here, Upshaw sings the later soprano version, and is occasionally taxed by its challengingly high tessitura. |
| Their range and tessitura increases and, with training, children are singing well over an octave in tune and in time by the end of first grade. |
| To the Marx songs, the tessitura of which is ideally suited to her edgy soprano, she brings incomparable authority and ravishing vocalism. |
| Prior to her appearances in London she had specialised in singing male roles, because of her remarkably low tessitura. |
| This arrangement presents few problems in technique, tessitura, rhythm, ensemble or endurance. |
| Inevitably she has to sing the role rather lightly, given its high tessitura. |
