What is a bass?
The bass is the lowest male voice type, and a bass sings the lowest notes.
As with every extreme, it's really hard to find true basses and it's almost impossible in the younger ages where bodies are still developing.
In a choir, basses are the foundation sound. In the opera they have a great range of roles to choose from. Basses are used as the villains and other dark characters, as comic-relief roles, the dramatic princes, the noble fathers of heroines, elderly priests and more.