Specific examples of ideas, conventions, and techniques found in William Wordsworth’s sonnet titled “Mutability” include the following:
- assonance, or the repetition of the same vowel sounds, as in the long “i” sounds of “high” and “climb” in line 1.
- chiasmus, a figure of speech in which words are “criss-crossed,” as in “From low to high” in line 1 and “from high to low” in line 2. Note that this figure of speech, which changes the pattern of the words without changing the words themselves, is relevant to the major theme of the poem: that the world is full of changes, and that indeed change is, ironically, the only thing one can depend on. Paradoxically, only the fact of change does not change.
- balanced, contrasting verbs (a version of chiasmus), as in the use of “climb” in line 1 and “sink” in line 2.
- onomatopoeia, in which a word sounds like the thing it describes, as in the use of “low” in line 2.
- enjambment, or lack of punctuation at the end of a line, as in line 2.
- alliteration, or repetition of the same consonant sounds, as in the repetition of “m” and “l” sounds in line 4:
A musical but melancholy chime . . .
- juxtaposition, or placing different things right next to each other, in the way that the very brief statement “Truth fails not” (line 7) is preceded and followed by very lengthy statements.
- personification, as in the way Truth is personified as a female in line 7.
- similes, or comparisons using “like” or “as,” as when the speaker says in line 8 that the outward forms “do melt like frosty rime.”
This sonnet has the following fairly unusual rhyme scheme: abba acca dac dca. It is as if, even in writing this sonnet, Wordsworth wanted to “change things up” and do something different – a motive highly appropriate to a poem about mutability. He adopts the sonnet genre but modifies one of its main conventions.
Interestingly, the meter of the first six lines is steadily iambic pentameter. In other words, each line has ten syllables, with each odd syllable unaccented and each even syllable is accented. However, when the speaker gets to the brief, crucial claim at the beginning of line 7 – “Truth fails not” – each single syllable gets heavily accented. Truth, in other words, is the one thing that is immutable, even if its forms are constantly changing. The sudden switch from regular, even predictable iambic pentameter to something completely different illustrates, ironically, the theme of mutability even as the speaker is asserting an exception to mutability.
In this way and many others, then, Wordsworth uses conventions and techniques to emphasize his poem's themes.