Here is Michael's reply to my you tube message (i tried to put a link to this forum discussion on the you tube message, but got an error warning when i tried, so not sure if he can access this site from the
info i provided.

Hello I am Graham's brother Michael and both his wife Maggie and I very much appreciate your kind words. He had not been well for several months and underwent major surgery to improve his condition. Although the operation was a success he finally passed away peacefully on Saturday morning from Renal failure.I am traveling to Portugal tomorrow to be with his and will pass on your kind thoughts. Michael Cooper