How iTunes Genius really works

In the new 8.0 version of iTunes, Apple introduced a feature called Genius. The Genius button aggregates a playlist of songs from your library that are similar to your song of choice, much like Pandora. So how does this fine technology work, you ask?

Denneval says

Genius playlist generated from "Governor Sarah Palin's Speech from RNC Podcast":

1. Fred Rogers — "Won't You Be My Neighbor"
2. Aqua — "Barbie Girl"
3. Dragon Tales — Max, Emmy, Enrique, Cassie, Ord, Zak and Wheezie — "Dragon Tune"
4. Paris Hilton — "Stars Are Blind"
5. Gene Wood — "Captain Kangaroo Overture"
6. Sounds of Sesame Street — Ernie — "Rubber Duckie"

It seems to be pretty accurate.

kawaiirobo says

I thought Genius was going to be cool, but I keep getting recommended Adema, WTF apple, WTF.

archivist replies

least it's not John Mayer