single voice

RK: The leadership of the Revolutionary Guard speaks with one single voice.

And how much do they speak with a single voice, would you say?

And incredibly, in this society so ultra-sensitive to individual freedom, not a single voice has been raised in protest.

Of course no single voice can cover more than a fraction of this range.

No single figure influenced so many minds, no single voice touched so many hearts.

Not a single voice demanded the abolition of pilgrimages, or the destruction of images, or the reform of public worship.

No single voice hailed him victor; no friendly hand smote its congratulations.

In this sense harmony cannot be applied to verse, because poetry is recited by a single voice.