Best intro tracks

[Guild McCommunist]

So, what are your favorite intro tracks? I mean tracks that are used to introduce an album, often times concept ones. Here's some examples and my favorites:

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Probably some Coheed tracks too.

 

[Yumi]

Revive!!!(?)//

The one that stands out for me, and has given me goosebumps when i first heard it has to be from the thrash metal band, Sepultura:

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