sentences:  This drill, known as the "Swinging Gates Formation", has been performed during the band's pregame show since 1961.After the Swinging Gates Formation, the band returns to the rectangular block mid-field and begins the "Cascade Sequence", in which the band performs a complex high-tempo marching routine to a series of drum cadences in order to transition into a compressed "Block M" formation.After the compressed block has been created, the announcer yells "ARE YOU READY?