Slayer

Jeff Hanneman wrote the main riff to "Raining Blood", arguably the most recognized riff in thrash metal, using a simple chromatic descending pattern over a tritone interval. Its power comes from the rhythmic placement and palm-muting attack, not harmonic complexity.

Kerry King has used the same basic rig philosophy for decades: B.C. Rich guitars with active EMG pickups straight into a high-gain Marshall head. He's said in interviews that he avoids effects pedals almost entirely because he wants nothing between his pick attack and the speaker.

"Reign in Blood" was recorded in just under three weeks with producer Rick Rubin at Def Jam. The entire album is only 29 minutes long, which forced every riff to earn its place, there's zero filler, making it one of the most efficient guitar albums ever recorded.

Jeff Hanneman was heavily influenced by punk bands like Dead Kennedys and Minor Threat, which is why many Slayer riffs have a raw, stripped-down energy compared to the more technical thrash of Megadeth or Testament. That punk DNA is what makes Slayer riffs feel so urgent.

Kerry King's signature whammy bar technique involves pushing the bar down while picking rapid chromatic notes, creating a dive-bombing siren effect. He's noted that he deliberately avoids practicing solos to keep them sounding spontaneous and aggressive.

"South of Heaven" was intentionally written at a slower tempo because the band wanted to prove they could be heavy without relying on speed. The main riff's slow, grinding palm-muted pattern became one of their most covered rhythm guitar parts.

Producer Andy Wallace mixed both "Reign in Blood" and "Seasons in the Abyss," and his approach to guitar tone, scooped mids, tight low-end, and razor-sharp high frequencies, essentially defined the thrash metal guitar sound that countless bands still chase today.