 The first backbend occurs at the end of a sequence where Astaire sends Rogers into a spin, collects her upstage and maneuvers her into a linked-arm stroll forward, repeats the spin but this time encircles her while she turns and then takes her in his arms.As the music becomes more energetic, the dancers flow across the floor and Rogers, moving against the music, suddenly falls into a deeper backbend, which is then repeated, only deeper still.The music now transitions to a quiet recapitulation of the main melody during which the pair engage in a muted and tender partnering, and here the second passage involving sequential imitation appears.