Final answer:
The internal structure of the minuet in movement 3 of Eine Kleine Nachtmusik is ABACABA.
Step-by-step explanation:
The internal structure of the minuet in movement 3 of Eine Kleine Nachtmusik is ABACABA.
This structure consists of several distinct sections: A, B, and C. The A section is the main theme, followed by the contrasting B section. The A section then returns, followed by a new C section. Finally, the A and B sections are repeated in reverse order (ABACA) before concluding with a final A section.
This structure creates a balanced and symmetrical form that is commonly found in classical minuets.