ToneAdapt

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Riff Tone

Estimated Prophet (Live at Barton Hall, Cornell University, Ithaca, NY 5/8/77)

Grateful Dead

Guitarrock1970s

Original Gear

Guitar1976 Doug Irwin 'Wolf' custom guitar
AmpFender Twin Reverb (Silverface, late 1970s, JBL speakers)
PickupsDiMarzio Super II humbuckers (split coil wiring, single-coil mode likely used for riff)

Amp Settings

gain3
bass5.5
mid6.5
treble7
reverb3
presence6

Effects & Signal Chain

modulationMu-Tron Mu-Tron III Envelope Filter

Notes

Live performance, May 8, 1977, Barton Hall, Cornell University. Jerry Garcia's main guitar for this era was the Irwin 'Wolf' with DiMarzio Super II pickups, typically run in single-coil mode for clarity. Amp was a Fender Twin Reverb with high headroom, clean settings. Effects were run into the front of the amp. Evidence for this specific rig comes from era-specific forum discussions and Garcia's known 1977 live setup.

Tone Character(10)
crisp and glassydynamic envelope filter sweeppercussive and articulateclean, high-headroombright and presenttight low endtouch-sensitivefunky rhythmic chordingdistinct quackminimal breakup

Difficulty

The riff requires intermediate skill due to its syncopated funk rhythm, the need for dynamic picking to trigger the envelope filter musically, and clean articulation to maintain clarity with the effect.

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