http://www.youtube.com/watch?feature=pl ... 85YsUAU6pA
Just a ridiculously awesome video where Brian May of Queen walks you through the multi-track (what's left of it) for the masterpiece of rock 'n roll. Freddie Mercury was an insane genius.
Once/if you watch the video, there are some really funny sounds (like the high voices in the big opera section) but it's pretty amazing how that can come together and the strengths of each make the whole that much better.
