BUT, the site only states that it was indeed recorded, but after 40 years, it might as well have been forever lost as it is been the case many times, like the stereo recording of the 48 hrs to memphis show remember? so it doesn't acctually mean those recordings are still there somewhere... Sometimes they just know because they find an empty tape box, or whatever studio notes, which states certain material once existed, but, sadly is lost.
Yet, we never know for sure, years ago, I saw the info about Anyday Now in some August '72 rehearsals, which seemed so unlikely!!! and there you go, last year FTD presented us with that, so... let's keep our fingers cross, as I've said many times, there are still some years of surprises from FTD, and although I'm no authority in the topic, neither I know any inner source from FTD, just as a fan that has follow them since the beging, I'm pretty sure they are saving the best for the last run.