Final answer:
The repetition of the phrase "drumming, trumpeting, and speech-making" is likely to evoke imagery of a celebration, create rhythmic effect, and emphasize the ongoing nature of these activities within the text.
Step-by-step explanation:
The author's repetition of the phrase "drumming, trumpeting, and speech-making" serves multiple literary purposes. It is likely meant to evoke imagery of a festive atmosphere, helping readers visualize and almost hear the celebratory sounds. By repeating the phrase, the author may also be creating a rhythmic effect in their writing, establishing a beat much like a drum which could enhance the reader's engagement with the text. Moreover, the repetition emphasizes the continuous nature of these activities, suggesting their importance within the scene being described. The repeated use of the phrase makes it akin to a refrain in prose, which can remind readers of an important theme or emotion associated with the festivities.