The actual answer is PATHOS just done it on apex
A poem with fourteen lines and a mixed rhyme scheme is a sonnet. It is written in iambic pentameter where each line has 10 syllables. It has a rhyme scheme and specific turn. The rhyme scheme in English is usually abab-cdcd-efef-gg and in Italian abba-abba-cde-cde.
1- The stress syllables are used to highlight the important words and concepts as in <em>To </em><em>speak</em><em> of </em><em>that </em><em>which </em><em>gives</em><em> thee </em><em>all </em><em>thy </em><em>might</em><em>? </em>(bold-faced parts are the stress syllables).
2- The (mostly) regular rhythm does highlight the overall emotional weight on the poem, just try it by reading it out loud as the stress syllables are easy to identify.
There is no evidence of sarcasm nor anger throughout the poem.