Creating windows where there are none in the concert-hall this morning, in preparation for the Invitation to the Dance concert celebrating the music of Lully next month.

The conceit is to turn the concert-hall into the Palace of Mirrors in Versailles as a backdrop to the secular and sacred pieces in the programme, complete with a picture of the famed Hall on the projector-screen behind the performers.

Now all I have to do is persuade all the instrumentalists and singers to don period costume…

The concert is on Weds 17 February at 1.10pm; details here.