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Hasse
________ was the master of opera seria.
Metastasio
________ set the standard for opera seria.
opened it up to abuses
singers made crazy demands on poets and composers, singers added irrelevant embellishments
ritornello could introduce all the material sung later
began incorporating structural features of instrumental music
some italian composers wanted to bring opera into harmony with the changing ideals of music and drama by making it more natural
changes reflected enlightenment thought
overture
integral part of the opera