We’ve received details of how Sabina Puértolas jumped in for Lucy Crowe as Gilda in Covent Garden’s Rigoletto.
She flew from Madrid to London on Thursday at 08:30, arriving at 11:00 at the Royal Opera and rehearsing there until 15:00.
Then she rested at the hotel and was back in the theatre at 18:00 to start the performance at 19:30.
She earned a huge ovation.
Unless we retain EU freedom of movement and freedom to work, it would be impossible to clear the paperwork in time, let alone the aliens queue at Heathrow.
UPDATE: Arts leaders fear hard Brexit.