It was 9 a.m., and change was coming, Lori McCormick warned her students as they sat on cushioned chairs arranged in an oval in a brightly lit studio. There would be a new soundtrack for their workout, new tunes to offer a beat.
“Play some waltzes!” called a white-haired, white-mustachioed student in jeans and sturdy sneakers.
Sorry, McCormick told him. They’d be moving faster than a waltz.
A couple of stragglers joined the group – one leaving a walker at the door – and McCormick,
