Very sad news, and all condolences to his family
I was fortunate enough to see him Live here in London a coupla times and he was amazing ,live, once with the famous "Tennessee three" backing him Totally memorable. the other with June and the later line up in the 80S, slicker but great also.
The BBC Main lunchtime News have just done a tribute to him.. Man thats Real recognition, and no more than he deserves