Joe Boyd stated that he 1st heard of PF when Jenner played him a tape in 'summer 1966' and that he then attended their concerts in Povis Garden i.e. this tape was done before the Oct.31 recording. Is there anything known about the contents / whereabouts of this tape?

Boyd source:

http://www.youtube.com/watch?v=8t2s5VPU13I&t=3m23s