I own a Korg M1. Most sounds on the Innuendo album are the default and require little to no tweaking.
The Show Must Go On is a bit of a mystery though. It's definitely not a default, built-in combination, but I'm quite *sure* it's either Symphonic (007) plus Brass 1 (032?), or Strings (027) plus Brass 1. There's something missing from that equation though because it still doesn't sound quite right.
I've read that people here have got close to it. Can anyone shed any light?