Answer:
The effect that the use of the words "symphony", "crescendo", and "movement" have on the overall meaning of the poem is that it appeals to the senses of the reader.
Explanation:
The use of the words "symphony", "crescendo", and "movement" are an example of imagery. This is a literary device that appeals to the senses to create a mental image in the mind of the reader, this poem appeals to the sense of ear, as it creates the image of an active girl whose presence provokes harmonic feelings as a musical tune.