Sander Blommaert, a multi-award-winning ballet teacher from Elmhurst Ballet School, and former Royal Ballet First Artist, has completed a run of 100 free online ballet classes throughout lockdown.

Somewhere between the pliés and tendus, your thighs begin to burn. You’re standing at a makeshift ballet barre (your kitchen counter) in homespun ballet slippers (socks rolled down past your heels, ...