pitch
a bass is the lowest male singing voice.
Bass is the name of a very low male singing voice.
The lowest singing voice is the male voice called bass.
The lowest normally recognised is the 'contralto'.
The lowest female voice is called contralto.
The lowest female voice is the Contralto; also considered the rarest in occurrance.
Bass.
Bass
Contalto
Bass Baritone
Baritone
The singing ranges for a baritone voice typically range from around G2 to G4.