False, opera, and symphonies were the least extensive genres of the romantic era, and not many were written during this time.
An epoch is the predecessor to and defines an era. For instance, the "Christian Era" is the period beginning with AD 1, and the epoch is (roughly) the birth of Christ. Though more general and not necessarily requiring an epoch, an age is essentially the same as an era. A genre is a specific type of literature, painting, music, film, or another art form that people classify as a group due to its unique qualities. Fiction, poetry, and nonfiction are the three main literary genres that you might be most familiar with. Additionally, genres offer the writer broad organizational patterns that can be used to organize what they say and when they say it.
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