But the is a racehorse.
Rap music relies heavily on triple meters. When Eminem raps his fast, intricate verses, he is often stacking anapests. The two unstressed syllables act as a launchpad for the punchline on the stressed beat. anapesten
Strictly speaking, Byron uses a mix, but the dominant, driving rhythm is anapestic. The two quick syllables ( the As- ) launch you into the stressed SYR , creating a sense of unstoppable forward motion. That is the anapest. To understand why the anapest is special, you have to look at its mirror image: the dactyl (DUM-da-da). The dactyl is the rhythm of a waltz: "HALF a league, HALF a league" (Tennyson’s Charge of the Light Brigade ). It is a falling rhythm—you start high and tumble down. But the is a racehorse