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Fender Mustang GT40 settings

Peace of Mind settings for Fender Mustang GT40

Boston · adapted 2 times on ToneAdapt

To get the Boston "Peace of Mind" solo tone on a Fender Mustang GT40, select the Basic British '60s preset, then set Gain 6.5, Bass 5.5, Mid 7.5, Treble 6.5, Reverb 0.5. Use the bridge pickup with your guitar's tone on 7-8 and volume on 8-9.

Solo settings

Adapted for a Gibson Les Paul · updated 2026-05-29

Preset / mode
Basic British '60s
Pickup
Bridge pickup
Guitar knobs
Tone 7-8 · Volume 8-9

Fender Mustang GT40 knobs

Gain
6.5
Bass
5.5
Mid
7.5
Treble
6.5
Reverb
0.5

Built-in effects

  • Reverb on (plate) · 2
  • Delay off

Playing tips

  • Use your amp's built-in delay set to a moderate level to recreate the spacious feel of the original tone.
  • Focus on clear articulation during lead lines to maintain the singing sustain characteristic.
  • Experiment with fingerstyle techniques to enhance the smoothness of your attack.

Riff settings

Adapted for a Gibson Les Paul · updated 2026-05-29

Preset / mode
Basic British '60s
Pickup
Bridge pickup
Guitar knobs
Tone 7-8 · Volume 8-9

Fender Mustang GT40 knobs

Gain
6.5
Bass
5
Mid
7
Treble
6
Reverb
0.5

Built-in effects

  • Reverb on (plate) · 2

Playing tips

  • Use your amp's built-in chorus to create the distinct shimmer and stereo width characteristic of the original tone.
  • Set your amp's delay to a moderate level to add depth and space to your rhythm tone.
  • Keep your attack clear and articulate to maintain note definition during the riff.

The original rig

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

Guitar
1970s Gibson Les Paul Goldtop
Amp
Custom modified Marshall 1959 Super Lead (plexi, 100W, late 1960s/early 1970s, with Scholz's own mods)
Gain
6.5
Bass
6.5
Mid
7.5
Treble
7
Presence
6
Reverb
2.5
Full Peace of Mind tone breakdown, effects and sources →

Different guitar or pedals? Get Peace of Mind adapted to your exact rig

These settings were generated for the gear named above. ToneAdapt adapts Boston'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 Peace of Mind?

Start from the Basic British '60s preset, then set Gain 6.5, Bass 5.5, Mid 7.5, Treble 6.5, Reverb 0.5.

Which pickup should I use for Peace of Mind?

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

What gear did Boston use on Peace of Mind?

Guitar: 1970s Gibson Les Paul Goldtop. Amp: Custom modified Marshall 1959 Super Lead (plexi, 100W, late 1960s/early 1970s, with Scholz's own mods).

Will these settings work with my guitar?

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

Popular songs on the Fender Mustang GT40

All 33 songs for the Fender Mustang GT40 →

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.