Accordingly, we pieced together 20 of the finest records whose quality is dependent on the interaction of one male and one female singer. Whether singing together, or trading off over a record's running order, it's cross-gender chemistry that makes these albums immortal. For purity, we've excised bands with an "everybody gets their turn" approach (so no Fleetwood Mac, no Belle & Sebastian, no New Pornographers or Broken Social Scene). More painfully, perhaps, we've even chucked out the Sonic Youths and Yo La Tengos of the world, bands whose primary man/woman story is complicated by the presence of an undeniably vital third wheel (Lee and James cannot just be photoshopped out of those pictures).
These are records of two people coexisting. In love, in conflict, or in something else entirely.