The sonnet may be the poetry world's answer to the waltz: a tried-and-true form that people tend to write off as stuffy until they realize that a song they love is actually written at least partly in 3/4 time. Think Led Zeppelin's "Kashmir" or Aretha Franklin's "I Never Loved a Man the Way I Loved You." Not so stodgy now, right? Making the sonnet dance again has become something of an American tradition, too, one that extends from Edna St. Vincent Millay to Terrance Hayes then beyond in both directions. Adding their own voices to the chorus are Diane Mehta (Forest with Castanets) and Drew Pisarra (Infinity Standing Up), two poets with debut collections that feature this reliable old form in surprisingly new ways. Below they discuss how they ended up working in a sonnet series and why it suited their material so well.