Riff Tone

Dumb (Instrumental Demo)

Nirvana

Guitarrock1990s

Original Gear

GuitarMartin D-18E (modified, likely unplugged, acoustic section)

AmpNone (acoustic, no amp used in demo recording)

PickupsDeArmond soundhole pickup (if plugged in, but likely unplugged for demo)

Amp Settings

gain2

bass3

mid3.5

treble3

reverb0.5

presence2.5

Effects & Signal Chain

No effects used for this tone

Notes

Studio demo recording, 1992-1993. All evidence and forum discussion indicate the 'Dumb (Instrumental Demo)' riff is played on an acoustic guitar with no amp or pedals. No evidence of electric guitar or amp use in this demo. If plugged in, the Martin D-18E would use a DeArmond soundhole pickup, but sources and audio suggest unplugged acoustic.

Tone Character(10)

natural acoustic resonancewarm and woodyopen and airyunprocesseddynamic and responsiveclear string articulationno compression or effectsorganic strummingintimate demo feelno amp coloration

Difficulty

The riff is played on acoustic guitar with straightforward open chords and slow, even strumming, making it accessible to beginners with minimal technical challenge.

Sources

Dumb is a slowed down version of On a plain : r/Nirvana Accurate tab for "Dumb" by Nirvana : r/Guitar Effect on Dumb instrumental demo : r/Nirvana

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