East window, St. Martin-in-the-Fields

Went to a workshop yesterday with music by Parry Wilcox and Racine. It's an 1hour and 3/4 long and you go through the pieces of music that have been chosen and at 12.30 there is a lunch time concert of these pieces.
Andrew the Musical Director is lovely and supportive about the people who come to sing. Mixed amoung us are some of the choir from the church.
Singing with Sopranos, Altos , Tenors and Basses is great as I sing with a small ladies choir.
The East window is unusual and although I've been to 2 other worshops I've not been able to take a reasonable photo of this window.