I have known Alan since around 1970 - At the Christchurch Folk Club and early Christchurch Folk Festival, and then we were both founding members of Twynham Morris (of Christchurch) and he was always a willing and able friend and singer.
I will always remember his singing of the Thirty Foot Trailer (by Ewan McCall) amongst others.
https://www.youtube.com/watch?v=wmDUdJXS95w

Sad to hear of his passing, even if I haven't seen him for years.

RIP old friend.

Tim Radford