How to use chest register in a sentence
In most practical methods the chest register occupies about the same position; this is also true of the head register.
His method was to exercise the voice at first in the chest register, and then gradually to extend the compass of the voice upward.
It ought to be almost imperceptibly connected with the chest-register by the introduction of the mixed tones.Piano and Song | Friedrich Wieck
This is also true of the expressions "chest voice," "chest resonance," and "chest register."
To the lower notes of the voice they therefore gave the name "chest register."