Complex sentence: With the curriculum, Fauré was dubbed "Robespierre" by disaffected members of the old guard as he modernised and broadened the range of music taught at the Conservatoire.
Split into simpler sentences: With the curriculum, Fauré was seen as equally revolutionary; he was dubbed "Robespierre" by disaffected members of the old guard. He modernised and broadened the range of music taught at the Conservatoire.