I doubt that was possible... It may have been recorded from two locations by two recording systems... but only theoretically possible. This would not be the first time Culshaw was off base This is from memory... my books are in storage Stereo was invented in 1954 by the Fletcher boys... but the first recording equipment generally available to put it on vinyl in a commercial way was in 1959... there were stereo recordings and recording systems being tested in 1957 in preparation for the already planned commercial development... The reason I doubt it is the location and the setup that would have been required at Bayreuth which was fairly bureaucratic at the time Ray Bay <[log in to unmask]>