Final answer:
Jeremiah's sonnets expressing love would most likely be categorized as lyrical poetry, a genre characterized by the personal and emotive expression, often in a song-like form.
Step-by-step explanation:
Jeremiah has been crafting and sharing sonnets, a form of poetry that is often used to express deep feelings of love. Within the realm of literary genres, these notes would most likely be categorized as lyrical poetry. The lyrical genre is closely associated with the expression of personal emotions, particularly in a song-like form, which is at the heart of what a sonnet achieves. Lyrical poetry is steeped in Romantic tradition, where the focus is on individual expression, and emotions are conveyed earnestly.
Considering the elements within sonnets, which follow a strict rhyme scheme and are crafted with a precise structure, they also allow for immense creativity within their constraints. This suggests that it is not only the content but the form itself that contributes to the classification of Jeremiah's work. The sonnets express love directly and intimately, making them very personal and sentimental. This aligns with what is known about sentimental poetry, yet in comparison, the lyrical designation is a more apt description given the structured, musical qualities inherent to sonnets, as described by the Spenserian or Shakespearean styles referenced above.