Complex sentence: After suffering from an initially unpopular public reception due in part to its racially charged theme, a Houston Grand Opera production of the opera in 1976 gained it new popularity, and is is now one of the best-known and most frequently performed operas.
Split into simpler sentences: After suffering from an initially unpopular public reception due in part to its racially charged theme. In 1976 the Houston Grand Opera production of the opera in 1976 gained it new popularity, eventually becoming one of the best-known and most frequently performed operas.