Riff Tone

Curmudgeon

Nirvana

Guitarrock1990s

Original Gear

GuitarFender Mustang (early 70s, Competition Blue, stock pickups, likely used for 'Curmudgeon' studio recording)

AmpMesa/Boogie Studio .22 Preamp into Crown Power Amp (as used by Cobain for B-sides and Nevermind outtakes, including 'Curmudgeon')

PickupsStock Fender Mustang single-coil pickups

Amp Settings

gain7.5

bass6

mid6

treble6.5

reverb0

presence5

Effects & Signal Chain

phaserUnknown Phaser pedal (modded, model unknown; likely EHX Small Stone or Boss PH-2)

distortionUnknown Distortion pedal (model unknown; possibly SansAmp, Boss DS-1/DS-2, or DOD Grunge)

Notes

Studio recording, 1991 (Nevermind B-side session). Guitar and amp inferred from era and session details. No evidence of live-specific gear for this song.

Tone Character(10)

thick and saturatedheavily modulatedaggressive and rawcompressed and densepronounced midrangeswirling phaser textureabrasive and grittywall-of-sound rhythmlo-fi, almost synth-likeminimal clarity, maximal impact

Difficulty

The riff is fast and aggressive but uses straightforward power chords and picking; the main challenge is keeping articulation through dense phaser and distortion.

Sources

Minimalism…. : r/guitarpedals Minimalismus…. : r/guitarpedals This is the most impressive Kurt Cobain guitar gear collection we've ever seen | MusicRadar

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