Conversation so far:
what city did Muddy Waters live in?
In 1943, Muddy Waters moved to Chicago to become a full-time professional musician. In 1958, he traveled to England, laying the foundations of the resurgence of interest in the blues there.
what instruments did Muddy Waters play?
Muddy Water's instruments are vocals, guitar, and harmonica.
who were some people Muddy Waters played with?
Muddy Waters played with his band—Little Walter Jacobs on harmonica, Jimmy Rogers on guitar, Elga Edmonds on drums, Otis Spann on piano, and sometimes bassist and songwriter Willie Dixon.

Question: what instruments did they play?
Self-contained rewrite: what instruments did Muddy Waters' band play?