So if I'm not mistaken, the cycle on the left was recorded in the 90s and the cycle on the right in the 70s, even though it was reissued with a picture of an older Brendel, giving the impression it's the one recorded when he was of greater age. Talk about confusing!

Anyway
https://www.youtube.com/watch?v=U5X94cejZXk&list=OLAK5uy_lx60QvIaU6orQRORgzptS0AGzjg5whbDE&index=65

Also, from what I've read, the prevailing opinion seems to be that the set on the left from the 90s, the one in the link, is superior.