response: No favorites here, still I know of Petra. They're regarded as a pioneer for Christian rock and also contemporary Christian music genres.
original_response: I am a fan of rock music too so i like Petra as one of the pioneer of the Christian rock
history: I enjoy gospel music when I hear it, but I don't know a lot about it. Gospel music is a Christian music genre. Who are some of your favorite gospel music artists?
knowledge: Petra is a music group regarded as a pioneer of the Christian rock and contemporary Christian music genres.