How the counter reads a poem
Syllables and stress come from the CMU Pronouncing Dictionary, which gives the sounds of about 126,000 English words with the stressed syllable of each marked. A stressed syllable gets an acute mark (´) above it and an unstressed one a small cup (˘); a lighter stroke is a secondary stress, as in the first syllable of “immortality”.
One-syllable words can go either way in verse, so they follow the beat of the poem. Little words such as “the”, “of”, “and” and “thou” lean unstressed and nouns and verbs lean stressed, but the meter decides. Stress in longer words is never changed: it is exactly as the dictionary gives it.
The meter is the pattern that fits the most lines: iambic (da-DUM), trochaic (DUM-da), anapestic (da-da-DUM) or dactylic (DUM-da-da), named by the number of beats in a line, from dimeter (two) to octameter (eight). Pentameter has five, so iambic pentameter is da-DUM five times. Lines may start with a reversed foot or end on an extra unstressed syllable, as they often do in real poems.
Rhyme letters in the right margin give each new rhyme sound the next letter. Full rhymes share every sound from the last stressed vowel to the end (day / May). Near rhymes (seen / been) and eye rhymes, which look alike but no longer sound alike (temperate / date), get a letter in italics.
Words the dictionary lacks, like invented words or unusual names, get an estimate from their spelling and a dotted underline. Older spellings are read with the usual rules: dimm’d has one syllable, wander’st two, and o’er one.