Complex sentence: However, he also explained that Rihanna is a performer, not a songwriter ", and what she sings is" less relevant than what she sells: a provocation that is enough to seem empowering, but not so radical that it's alienating.
Split into simpler sentences: However, he further explained that Rihanna is a performer, not a songwriter. What she sings is less relevant than what she sells: a provocation that is enough to seem empowering, but not so radical that it's alienating.