Kurt Cobain

• The quiet-to-loud dynamic is the entire point — verses genuinely quiet (guitar volume rolled back), chorus fully open. Do not level this out
• Boss DS-2 in Turbo II mode provides the bulk of the distortion — mode I is too smooth, mode II gives the more aggressive, slightly unstable character
• Jaguar and Mustang guitars have shorter scale lengths (24" vs Strat's 25.5") — this contributes to the slightly looser, more aggressive string feel
• Play with a medium-heavy pick held loosely — the lack of control over pick angle is part of the grunge attack
• The Small Clone runs with Depth switch off for "Come As You Are" — switch on for more pronounced chorus character in other contexts
• Tune down to D or C# for heavier riff-based songs — Cobain frequently played in lower tunings
• Feedback is used intentionally at the end of phrases — aim the headstock at the amp speaker for controlled feedback
• Left-hand technique is loose and rhythmically imprecise — copying the exact looseness is as important as copying the notes
• Open D and drop D chord shapes are heavily used — "Lithium" and "Come As You Are" are built around these simple, resonant chord voicings

Kurt Cobain made distortion and feedback into art — Nirvana's quiet-to-crushing dynamic and his raw, unpredictable lead playing defined grunge and influenced every alternative rock band that followed.