Probably the best ever live acoustic "concert" I ever attended was in '70/'71 - Cat Stevens & Alun Davies at Leeds University Student Union Saturday evening "Hop" - 1970/'71 - not 100 % sure of the year as I seem to have lost my historical notes for that particular evening. Probably in my sister's attic back in Kirkella ! The auditorium (actually the refectory which doubled as the concert hall) was jam packed. The silence was incredible during the actual moments of performance, the crowd went wild after each song in appreciation. Unforgettable evening. I think this is the best recording of a live performance I've ever heard of this song...crisp, unfettered.