The version of "Changes" on this live album throws in a "Layla" quote in the bass. It works rather well, I think...

Regarding Anderson's voice, it is interesting to note that some songs have been transposed down to accomodate his age. Specifically, "I've Seen All Good People" is in E-flat, and "Awaken" is in D here. Both of these songs were in E major originally.

However, this is nothing new - the Keys to Ascension 2 version of "Going for the One" is transposed down from E to D. For me, the highlight of the 2014 "Three Album Tour" (the one chronicled on Like It Is: Yes At The Bristol Hippodrome) was hearing Jon Davison ace this demanding song at its original pitch.