* Personification: The reaper is described as "singing" and "a voice so sweet," giving human qualities to the natural world.
* Imagery: Wordsworth uses vivid imagery to create a picture of the scene: "The valley rings," "melancholy," "lonely," "the vale."
* Symbolism: The reaper symbolizes human connection to nature and the power of music to transcend cultural barriers.
* Repetition: The repetition of "a voice so sweet" emphasizes the beauty and haunting quality of the reaper's song.
* Onomatopoeia: "The valley rings" suggests the sound of the reaper's voice echoing through the valley.
* Alliteration: "Sad" and "sweet" create a pleasing and memorable sound.
* Simile: "Like the murmur of the distant seas" compares the reaper's voice to the sound of the ocean, suggesting a vast and timeless quality.
* Metaphor: The reaper's song is described as "a song of old," implying a long-held tradition and a connection to the past.
* Allusion: Wordsworth alludes to the mythical figure of Orpheus, a musician who could charm even wild beasts with his music, suggesting the powerful influence of the reaper's singing.
Overall, these devices work together to create a mood of melancholy beauty, isolation, and a sense of wonder at the power of music and nature.