Conversation so far:
What influence did Richard Wagner have
Wagner's later musical style introduced new ideas in harmony, melodic process (leitmotif) and operatic structure.
What kind of music did Richard Wagner make
He is chiefly known for his operas (or, as some of his mature works were later known, music dramas)

Question: What else was he known for
Self-contained rewrite: What else was Richard Wagner known for besides his operas