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Fender Mustang GT40 settings

Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007) settings for Fender Mustang GT40

John Mayer · adapted 3 times on ToneAdapt

To get the John Mayer "Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007)" solo tone on a Fender Mustang GT40, select the Roy Blues preset, then set Gain 4, Bass 6, Mid 6.5, Treble 6.5, Reverb 1.5. Use the neck pickup with your guitar's tone on 6-7 and volume on 8-9.

Solo settings

Adapted for a Fender Stratocaster · updated 2026-04-12

Preset / mode
Roy Blues
Pickup
Neck pickup
Guitar knobs
Tone 6-7 · Volume 8-9

Fender Mustang GT40 knobs

Gain
4
Bass
6
Mid
6.5
Treble
6.5
Reverb
1.5

Built-in effects

  • Reverb off

Playing tips

  • Use your amp's built-in chorus to add a subtle modulation effect, enhancing the warmth and depth of your lead tone.
  • Focus on dynamic picking to achieve the touch-sensitive response characteristic of Mayer's playing.
  • Experiment with expressive bends to capture the emotional quality of the solo.

The original rig

What John Mayer used on the recording, for reference. ToneAdapt translates this to the controls your Fender Mustang GT40 actually has.

Guitar
Fender Custom Shop Jimi Hendrix Monterey Pop Stratocaster (with Brazilian rosewood fretboard, sanded neck)
Amp
Two-Rock Custom Reverb Signature (John Mayer's main live amp for this era)
Gain
4
Bass
6.5
Mid
6.5
Treble
6.5
Presence
5.5
Reverb
4
Full Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007) tone breakdown, effects and sources →

Different guitar or pedals? Get Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007) adapted to your exact rig

These settings were generated for the gear named above. ToneAdapt adapts John Mayer's tone to your own guitar, pickups, amp and pedals in seconds.

Frequently asked questions

What preset should I use on the Fender Mustang GT40 for Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007)?

Start from the Roy Blues preset, then set Gain 4, Bass 6, Mid 6.5, Treble 6.5, Reverb 1.5.

Which pickup should I use for Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007)?

Neck pickup, with the guitar's tone at 6-7 and volume at 8-9.

What gear did John Mayer use on Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007)?

Guitar: Fender Custom Shop Jimi Hendrix Monterey Pop Stratocaster (with Brazilian rosewood fretboard, sanded neck). Amp: Two-Rock Custom Reverb Signature (John Mayer's main live amp for this era).

Will these settings work with my guitar?

These settings were adapted for a Fender Stratocaster. Different pickups change how much gain and treble you need. ToneAdapt adapts the tone to your exact guitar, pickups, amp and pedals.

Belief (Live at the Nokia Theatre, Los Angeles, CA - December 2007) on other amps

Popular songs on the Fender Mustang GT40

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Settings are generated by ToneAdapt's tone adaptation for the gear named on this page and are a starting point — every amp, guitar and room is a little different.