Complex sentence: Bishop's "operas", written in a style and format that satisfied the audiences of his day, have more in common with the earlier, native English ballad opera genre, or with modern musicals, that the classical opera of continental Europe with full recitatives.
Split into simpler sentences: Bishop's "operas" were written in a style and format that satisfied the audiences of his day. They have more in common with the earlier, native English ballad opera genre, or with modern musicals, than the classical opera of continental Europe with full recitatives.