In the period before it was closed, trooping rehearsals such as this would be held at Chelsea Barracks. I remember going to watch my dad as the band's manoeuvred about the old Chelsea Barracks square.
Its The Red Feathers composed by John Mackenzie Rogan, the Coldstream Guards were Trooping the Colour that year and wear red feathers in their bearskins
this was the 1st rehearsal with all (almost all) of the bands so well.. you know ha ha.. and the corps of drums weren't sure if they were supposed to play