Many blues singers developed unique singing styles due to the self-taught nature of their music, and, many times the challenges of their upbringing, hard life and emotions are audibly present in their voice. We know that Howlin' Wolf lived that tough blues life, but, in the song Killing Floor, how would you describe the character of his voice?
a) Smooth
b) Soothing
c) Gritty
d) High-pitched
