voice production

This is in stark contrast to the alleged, but now refuted "whistle" mechanism, which would have required for the vocal folds to be immobile during voice production.

The study thus demonstrates that the "default" mechanism of voice production in humans and most mammals also applies to the upper pitch ranges of operatic singing.

The study's senior author Christian T. Herbst maintains: "This finally debunks a long-standing myth of voice pedagogy. It is remarkable that such extreme sounds can be produced with a rather common voice production mechanism -- this is only possible with outstanding muscular fine-control of the singers' vocal instrument."

From a voice production point of view, the meows and the screeches are not special.

Yet the same exquisite — there’s no other word for it — balance between the voices, the apparently effortless voice production, the tonal quality, the phrasing, the breathing, the synchronization of not just voices but ideas and approach, is there as it has always been.