Final answer:
The light German opera featuring spoken dialogue is called Operetta. An example of a famous German operetta is The Merry Widow by Franz Lehár.
Step-by-step explanation:
The light German opera featuring spoken dialogue is called Operetta. Operetta is a type of musical theater that combines spoken dialogue with musical numbers. It is usually light-hearted and comedic, with catchy tunes and lively characters.
An example of a famous German operetta is The Merry Widow by Franz Lehár, which features spoken dialogue interspersed with musical numbers.