system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are so many jazz groups named simply after one man/woman instead of having a band name (ex. Metallica has 4 members, Duke Ellington had many more)
gpt
Because  most of those bands have a leader and an often changing. Duke Ellington, Art Blakey, Miles Davis, all of them had rotating cast playing different stuff. If metallica replaced half its members and stopped playing the same songs, they wouldn't be metallica. This is what happens in jazz.