Why as professionals do we perpetuate, and why as composers do we imitate, the sound of a soprano section comprised of pre-pubescent boys? Why insist on the misunderstanding that adult female sopranos are able to or should sing strictly senza vibrato in the way children do?
It so happens that a significant amount of our choral literature draws from an historical context in which women were not able to participate. The SATB voicing, as we know it today, belonged to all-male choruses, consisting of both pre- and post-pubescent male voices.
So, why as professionals do we perpetuate, and why as composers do we imitate, the sound of a soprano section comprised of pre-pubescent boys? Why insist on the misunderstanding that adult female sopranos are able to or should sing strictly senza vibrato in the way children do?
Conversely, singing con vibrato is singing out, with energy, and it is conducive to efficient phonation for all voice types, especially on highs and fortes. Vibrato also helps with vocal endurance because it is only possible when the vocal mechanism is in a position to relax and allow for some vibration, which is an indication of steady breath flow.
That is to say, if the first sopranos are singing above the staff senza vibrato for longer than a couple of minutes with infrequent rests, you are going to have an exhausted soprano section for the remainder of your rehearsal or concert.
Composers would do well to prevent such a situation. We may think we can get away with sustained highs and louds senza vibrato because of that seductive playback function on our engraving software. Those sopranos do not have trouble sustaining and tuning when they are represented by a pre-recorded sound. But there are more reliable models.
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