Sally Grace obituary
My colleague Sally Grace, who has died aged 78, was a leading voice and speech specialist whose most recent role was with the boys and girls appearing in the West End stage show of Billy Elliot, teaching them the Geordie dialect. She introduced them to pit-yack, based on miners' slang, and used it as a secret shared language.Her career began at the Central School of Speech and Drama, London, in 1955 where, as 17-year…