One time I was looking at the sleeve inside a Vanguard album of Buffy Sainte-Marie, and there was a little ad for an album of Buffy Live at Carnegie Hall. This would have been in the late 60's or very early 70's. I think that Vanguard jumped the gun on that ad and in fact never released the album, but I may be wrong. Does anyone know anything about this? I would sell my guinea pig's soul to get a copy of such an album!