that for male voice:
i.e., an octave lower. These are the first eight notes of the alto of the female voice and of the bass of the male voice. Alto and bass sing these notes with precisely the same adjustment of the vocal tract. The vocal cords in this register vibrate along their entire length, the space between them, also the "cup" and the general adjustment of the vocal tract, are open. A good soprano can come down into this register as far as
and a good tenor as far as
