Both of these poems by Christina Rossetti are an address to a beloved person, giving instructions on what should be done, emotionally speaking, in the event of the speaker's death. In both poems, the speaker seems to feel that she will certainly predecease her lover.
Both poems utilize a regular meter and rhyme scheme, but these differ. In "Remember," the sonnet form is used—there are fourteen lines, each in iambic pentameter. This is a Petrarchan, rather than a Shakespearean, sonnet in terms of its rhyme scheme. "Song," on the other hand, is, as the title suggests, written in a ballad form, with a simple ABCB rhyme scheme.
The title of "Remember" suggests that it is entreating the beloved to remember the deceased after death, and certainly, throughout the first eight lines of the sonnet, this is the theme. At the end of the poem, however, the speaker goes on to acknowledge that the lover might "forget" her "for a while," and that this is no bad thing—it is better to forget and be...
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