From within Apple's stable of musicians, Harrison recruited the band Badfinger, future Yes drummer Alan White, and Beatles assistant Mal Evans on percussion [REF].
Simon Leng consulted Voormann, Barham, Molland and Delaney Bramlett for his chapter covering the making of All Things Must Pass and credits Tony Ashton as one of the keyboard players on both versions of "Isn't It a Pity" [REF].