"Dyers Eve" (titled "Dyer's Eve" in-game) is a 1988 song by American thrash metal band Metallica that appears in Guitar Hero: Metallica, and can be exported to other games through DLC.
Dyers Eve has the fastest tempo of all the Metallica songs on the game, and is extremely difficult to five-star. The song picks up it's speed very quickly, features fast alt-strumming plus two very difficult solo sections from James Hetfield and Kirk Hammett (expect no less from Metallica) and a very quick crossover/double bass drum-beat by Lars Ulrich. The difficulty of each instrument is similar to Battery, and Fight Fire with Fire. The hardest instrument is the drums. Dyers Eve supports the Expert +.
Intensity:
Guitar: 90%
Bass: 100%
Drums: 100%
Vocals: 30%
Gaining a score of 450,000 in drums rewards the player with the "Dyers Eve" achievement.