Frost's Acquainted with the Night (#11) shortens terza rima to fourteen lines and ends on a couplet. Kimiko Hahn (#32), writing about the glosa, cut the traditional ten-line stanzas because they thudded. Both took an old form and trimmed it to fit a modern ear instead of keeping it whole.

Exercise: pick a form with a long stanza, such as the ten-line glosa stanza or a chain of tercets. Write it once at full length, then once cut to the shortest version that still keeps its rhyme or return. Note which cut you made first.

Kimiko Hahn (#32) builds a glosa by opening on someone else's quatrain and letting each borrowed line close a stanza in turn; she cut the traditional ten-line stanzas because the rhyme arrived too late to sound intended. Sarah Ghazal Ali (#33) says the ghazal's couplets each hinge on themselves, so a ghazal that tells one story in order has stopped being one.

Both treat the borrowed or repeated line as a hinge, not a thread.

Exercise: take four lines from a poem you love and write four short stanzas, each ending on one of them in order. Then reorder the stanzas and see which still work. If all of them do, you have written something nearer a ghazal.

O'Connor (#28) sets Kay Ryan's very short lines against Whitman's long ones: the length of the line sizes the subject. Williams's wheelbarrow poem (#5) is the same lesson at its smallest, where the break cuts a word in half.

Exercise: take one plain sentence about a small thing and break it into lines of two words. Then break the same sentence into one long line. Say aloud which one sounds like the thing.