Which episode did the composer win for Outstanding Music Composition for a Series (Original Dramatic Score) with more than 200 votes?
more than 200 votes refer to votes > 200; composer refers to role = 'composer'; Outstanding Music Composition for a Series (Original Dramatic Score) refers to award = 'Outstanding Music Composition for a Series (Original Dramatic Score)'
SELECT DISTINCT T1.episode_id FROM Award AS T1 INNER JOIN Vote AS T2 ON T2.episode_id = T1.episode_id WHERE T1.role = 'composer' AND T1.award = 'Outstanding Music Composition for a Series (Original Dramatic Score)' AND T2.votes > 200;