Which musical form features the first section returning between various other sections?

The correct answer is Rondo, which is a musical form characterized by the repeated return of the main theme or "A" section between contrasting sections. This structure typically follows a pattern such as ABACA or ABACABA, where 'A' is the recurring theme and 'B' and 'C' are different contrasting sections. This alternating pattern creates a playful and lively character, making it a popular form for both instrumental and vocal music.

Understanding Rondo is essential, as it showcases the clever interplay between repetition and contrast, allowing listeners to experience familiar material in varied contexts. This structure has been widely used by composers throughout history, including in the classical period, and remains a vibrant aspect of music composition today.