In Rondo Form, which of the following sequences best represents the structure?

Rondo Form is characterized by a recurring theme interspersed with contrasting sections. The structure typically follows the pattern of A (the main theme) alternating with various other themes or episodes.

In the option that represents the correct structure, we see a sequence that consists of the principal theme A returning multiple times, with contrasting sections appearing in between. The pattern ABACA showcases A returning after each contrasting section (B and C), which is a hallmark of the Rondo form. This structure emphasizes the playful and circular nature of Rondo, allowing the listener to become familiar with the main theme while also experiencing variety through the contrasting episodes.

Other sequences do not adhere to the essential characteristics of Rondo. The patterns that include only two appearances of A (like ABAB) or lack a clear return of A after diverse episodes (like ABAC or ABCA) fail to capture the transformative and cyclical essence of Rondo Form. In contrast, ABACA effectively illustrates the repeating nature of the theme while integrating new material, making it the correct representation of Rondo structure.