There is a pretty good version of this song on www.karaoke-version.com. It's available as a download in either straight Mp3 music track form or as an Mp3+ CDG karaoke track w/ on-screen graphics.
As I recall, Gillan stopped doing the A5's back in the early to mid '90's and would begin on the C5 'ooh's' and then just do the last section of screams the same pitch as the one preceding it (i.e., repeat the E5's again on the aah's instead of going up to the higher A5's) while Steve Morse would do the higher (original) notes on the guitar. Still very powerful. I even have heard a Dream Theater cover of the tune where James LaBrie didn't try the A5's and I'm pretty sure didn't do the E5's either (keyboard part covered the higher notes on the aah's screaming section).
