1
She stared into Vail's eyes and let her voice drop a half octave.
2
An'"-hisvoice scaling a half octave in its pain-"keephim to home after this.
3
Barry's voice dropped about one and a half octaves.
4
"There's something I think I know," Ethan's voice dropped a half octave.
5
"Hey, Chad." Jones' voice, a half octave higher than usual.
6
"Yes," answered Mrs. Yellett, reflectively, "Leander's mouth do run about eight and a half octaves.
7
"I go down to Xeres sometimes, and always bring up a half octave of something special for my friends, here."
8
In 1793 Clementi extended the key-board to five and a half octaves; six and a half octaves were reached in 1811, and seven in 1851.