To be honest I would rather listen to ToL from the MM tour than Alchemy, but much prefer the BIA tour versions. Reasons? Well, I love how the song bursts into life with the drums and sax followed by Marks nice powerful solo. I also like how he introduces the band, playing different parts of other tunes. Great stuff! But what I like most is how the song slows down and then Mark so brilliantly builds it up again into a rousing finale. The BIA tour versions are best at this without any doubt; the final solos are longer and build up more slowly. There is no doubt a musical name for this but I'm not musically informed - sorry. I think arpeggio is the proper name for the twiddly bits on Sultans but that's about it!
Why MM tour over Alchemy? Well, BIA versions are just perfect for me but if I want a stripped down version then MM tour versions will do very nicely. Alchemy is neither one thing or the other; not quite right and massively overrated.