I had a thought this afternoon while listening to SFAM*.
If you could have any singers, dead or alive, take the parts of the various characters from Scenes from a Memory, who would you pick? Like what Roger Waters did with The Wall in Berlin 1990.
Nicholas
Victoria (preferably a female singer)
The Miracle (Edward)
The Sleeper (Julian)
The Hypnotherapist
The 'older man' (Fatal Tragedy)
Perhaps you could include some 'Narrator' figure for some difficult parts in Finally Free where it isn't so clear who's speaking. (Their love renewed, they'd rendez-vous).
*I don't claim to be the first person to have had this thought. I apologise if this has been done before.
For the record: IMO, JLB does a great job on SFAM; this is hypothetical.