Tom Paxton, Judy Collins, The Incredible String Band: Royal Albert Hall, London

A TRIUMPH — there is no other word for the reception Judy Collins and Tom Paxton received at the Royal Albert Hall on Friday. The audience acclaimed the pure beauty of Judy's lovely voice, and then it went wild over Paxton. For once, the adulation was deserved. Rarely has a British folk audience seen such a pair of consummate professionals who know exactly what they are trying to do, and who go ahead and do it.