How does a rhythmic pattern help hold a through-composed melody together?

In musical composition, a through-composed melody is characterized by a lack of repetitive formal structure, such as the a b c d phrase pattern found in some traditional songs. Because these melodies do not rely on the standard repetition or restatement of melodic themes to create a sense of unity, they can lack inherent formal balance.1

To promote coherence in such works, a composer may employ a consistent rhythmic pattern that appears throughout the piece. By maintaining a recognizable durational framework, this pattern acts as a unifying thread that connects the diverse melodic phrases, providing the listener with a sense of continuity despite the absence of a repetitive melodic plan. This use of rhythm serves as a structural anchor, helping to organize the succession of tones in time and ensuring the work is perceived as a cohesive whole rather than a series of disconnected musical ideas.123