James Hetfield on strings and tuning stability
Guitarist · Metallicapaid endorser · Reviewed by the Change Your Strings editorial team ·
Who James Hetfield is
James Hetfield is the founding rhythm guitarist, lead vocalist, and primary songwriter of Metallica, the most commercially successful thrash-metal band in history. The Metallica catalog from Kill 'Em All (1983) through 72 Seasons (2023) is foundational rhythm-guitar literature for an entire generation of metal players. Hetfield's downpicking technique on tracks like "Master of Puppets" and "Battery" is the reference point — and the source of the right-hand attack the quotes below describe.
Documented across four decades of rig rundowns as a Regular Slinky / Power Slinky / Beefy Slinky rotator depending on the tuning and the record. Papa Het's Hardwired Master Core (Ernie Ball, 2022) was the formalization of that house approach into a single signature set: 11, 14, 18p, 28, 38, 50, designed specifically for his attack.
Why these quotes matter
Hetfield's framing, parsed
The pitch-transient observation is a technical insight that holds up beyond Hetfield's specific case. Any time a thrash-metal rhythm player asks "why does my attack sound a bit out-of-tune even though my tuner says I'm in," the answer is some version of this: their pick attack momentarily bends pitch sharp, the ear hears smear, and the gauge isn't heavy enough to absorb it. The fix is heavier gauge, lighter attack, or both.
Related
Hetfield at the 2022 launch of Papa Het's Hardwired Master Core, his first-ever signature set with Ernie Ball, a custom .011–.050 configuration (11, 14, 18p, 28, 38, 50) developed with Ernie Ball over a decade.
It's only taken 40 years for me to have my own strings.
Guitarist
Hetfield explaining the core design problem behind the Master Cores, his rhythm attack is heavy enough that lighter-gauge strings go momentarily sharp under the pick, then settle, and that transient pitch smear is what a heavier-gauge signature set was built to fix.
The biggest challenge was tuning. If you got lighter strings, you hit them hard, they're going 'Whoa!' real sharp for a second and then settle back.
Guitarist