A Royal Audience For The Canadian Pipes -- Listening to the music of the pipes at Birkball are Prince Charles, whose attention has wandered towards the camera, and Princess Anne, who is intent and intrigued. Also attentive to the music, in front, is one of Princess Elizabeth's pet corgis.At Birkhall on the Deeside where Princess Elizabeth and her family are holidaying the pipe band of the Argyll and Sutherland Highlanders of Canada played for a royal and appreciative audience. August 25, 1951. (Photo by Fox Photos).