For those wondering what the fuck a monad is, it’s simply is just a monoid in the category of endofunctors
Jethro Tull’s Thick as a Brick at 44 minutes, or their A Passion Play at 45 (each was an entire vinyl album on both sides for a single song, though some CD/mp3 re-releases later split them into multiple chunks for easier navigation).
Is this a “name all the long songs” post now?
If so, I’ll add The Gathering, “How to Measure a Planet?” at 28:32.
It is now. Dream Theater, “Six Degrees of Inner Turbulence” at 42:00 is a good one.
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Dream Theater, “Six Degrees of Inner Turbulence”
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Adds to list alongside Echoes by Pink Floyd and In A Gadda Da Vida by Iron Butterflies