Weird fishes amp settings — Boss Katana 100 MkII

The Radiohead guitar tone for “Weird fishes”, dialed in for a Boss Katana 100 MkII with a Harley Benton SC-Custom II. Studio version, In Rainbows (2007) — Jonny Greenwood's main arpeggio part

Original rig

Fender Telecaster Plus (Lace Sensor Blue neck pickup) → early-60s Fender Bassman head (clean) → custom cabinet. No pedals. EMT 140 plate reverb added at mixdown by Nigel Godrich.

Crystalline, bell-like clean with warm low-mids and zero breakup — harp-like clarity from fingerpicked arpeggios

Amp settings — Boss Katana 100 MkII

CHANNELClean amp typeBRIGHToffBOOSToff

Knob	Setting (0–10)
Gain	1
Bass	5
Mid	6
Treble	5
Presence	4
Reverb	0
Master	5

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Guitar

PICKUPneck TONE8 VOLUME10

Signal chain

01Boss Reverb (owned)

Set to Plate mode if available — emulates the EMT 140 plate reverb Nigel Godrich added at mixdown. Keep subtle; the original is not drenched.

Level 3 · Tone 6 · Time 5

Why these settings

Your SC-Custom II has humbuckers vs Jonny's Lace Sensor Blue single coil, so the neck pickup will be darker and hotter. Treble stays at 5 (not raised) because the Katana Clean voicing is already bright enough; rolling tone knob to 8 instead of 10 mimics the Lace Sensor's softer high-end. Gain at 1 ensures zero breakup — the Bassman was set purely clean.

PRO TIPUse fingerpicking or hybrid picking with the fleshy part of your fingertips, not nails — Jonny's light, even attack on the neck pickup is what creates the bell-like, almost piano-hammer clarity. The 'phasing' texture comes from a second guitarist (Ed O'Brien) playing a counter-arpeggio, not from any effect.

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These settings are for a Boss Katana 100 MkII. ToneAdapt matches any song to whatever amp, guitar and pedals you own — first match is free.

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