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shawn 659e53766a fix(bass-presets): move factory presets to channel subdirs + per-channel install

Root cause: factory presets for bass (banks 17-20) sat in the root
factory dir alongside guitar presets, and install_factory_presets()
used rglob() which picked up ALL presets into the GUITAR channel.

Changes:
- Move bank_17-20 from presets/factory/ → presets/factory/bass/
  (matching the existing keys/, vocals/, backing_tracks/ layout)
- Fix install_factory_presets() to scan channel-specific subdirectory:
  GUITAR scans root bank_* dirs, all others scan <channel>/bank_*
- Fix main.py to iterate over all 5 channels when installing factory
  presets (was only installing into GUITAR)
- Import Channel enum in main.py

Tests: 56/56 preset manager tests pass. Integration verified:
- GUITAR: 68 presets (banks 0-16)
- BASS: 16 presets (banks 17-20, SansAmp/Darkglass/Ampeg SVT)
- KEYS: 12 presets (banks 21-23)
- VOCALS: 12 presets (banks 24-26)
- BACKING_TRACKS: 12 presets (banks 27-29)

2026-06-13 10:23:57 -04:00

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Bass Genre Tones — NAM Model Research & Artist Chain Configs

Researched: 2026-06-13 Source: Tone3000 (tone3000.com) — the primary NAM capture repository

Overview

We have 10 bass cabinet IRs already installed but 5 bass NAM models already on disk (Bank 7):

File	Type
`Ampeg_PF20T_A2.nam`	Small tube combo (Ampeg)
`Aguilar_Tone_Hammer_500_A2.nam`	Modern preamp
`GK_800RB_Line_A2.nam`	Classic solid-state
`Aguilar_DB751_Cab_A2.nam`	Bass amp DI
`Fender_Bassman_Dimed_A2.nam`	Bassman growl

Gaps: SansAmp BDDI, Darkglass B3K/B7K, Ampeg SVT-CL, Geddy Lee DI-2112.

Part 1: Available Bass NAM Models on Tone3000

1.1 Tech 21 SansAmp

Capture	Creator	Tone3000 URL
SansAmp BDDI v1	jackspirited	`/tones/sansamp-bddi-v1-39232`
Tech21 SansAmp VT Bass DI	salamiexcerpt5j	`/tones/tech21-sansamp-vt-bass-di-30406`
Geddy Lee SansAmp DI-2112	jakegideon	`/tones/geddy-lee-sansamp-di-2112-5989`

1.2 Darkglass Electronics

Capture	Creator	URL
Darkglass B3K (A1+A2)	santo	`/tones/darkglass-microtubes-b3k-26546`
Darkglass B7K	tmrecprod	`/tones/darkglass-b7k-71080`
Darkglass B7K Ultra	darkglass	`/tones/darkglass-b7k-ultra-27698`
Darkglass Alpha-Omega	darkglass	`/tones/darkglass-alpha-omega-27697`
Darkglass Vintage Deluxe	darkglass	`/tones/darkglass-vintage-deluxe-27696`
Darkglass ADAM	fctwingov6	`/tones/darkglass-adam-65168`

1.3 Ampeg

Capture	Creator	URL
Ampeg SVT-CL Bass Head	deathblossomaudio	`/tones/ampeg-svt-cl-bass-head-45809`
Ampeg SVT-4 Pro	noamp	`/tones/ampeg-svt-4-pro-29376`
Ampeg B-15 Fliptop	tone3000	`/tones/ampeg-b-15-fliptop-26828`
Ampeg SGT-DI	plingubus	`/tones/ampeg-sgt-di-34631`

1.4 Aguilar

Capture	Creator	URL
Aguilar Tone Hammer (pedal)	wolffire99	`/tones/aguilar-tone-hammer-45991`
Aguilar DB751	dudubxt	`/tones/aguilar-db751-39531`
Aguiler Plugin Suite (Feather!)	jindrich	`/tones/aguilar-plugin-suite-feather-full-rig-collection-41096`

1.5 Gallien-Krueger

Capture	Creator	URL
GK 800	siddonfer	`/tones/gk-800--2608`
Gallien Krueger 800 RB	joeformat	`/tones/gallien-krueger-800-rb-56782`

1.6 Fender Bassman

Capture	Creator	URL
Fender Bassman 5F6A Series	neampmod	`/tones/fender-bassman-5f6a-series-26082`
1971 Fender Bassman	maestrodimusica	`/tones/1971-fender-bassman-13776`

Full Captures Report

See /home/oplabs/nam_bass_captures_report.md for complete list (80+ captures).

Part 2: Artist Tone Matrix

Artist	Primary Model	Secondary Model	Best IR
Cliff Burton (Metallica)	Ampeg SVT-CL	SansAmp BDDI v1	bass-thick_classic
Geddy Lee (70s)	Ampeg SVT-CL (clean)	—	bass-classic
Geddy Lee (80s+)	Geddy Lee SansAmp DI-2112	SansAmp BDDI v1 + SVT-CL	bass-balanced
Justin Chancellor (Tool)	Darkglass B3K	GK 800	bass-more_mids
John Paul Jones (Led Zep)	Ampeg SVT-CL (clean)	Fender Bassman 5F6A	bass-classic
Flea (RHCP)	SansAmp BDDI v1	Ampeg SVT-CL	bass-thick_classic
Les Claypool (Primus)	Darkglass Vintage Deluxe + B7K	SansAmp BDDI + SVT-CL	bass-more_mids
Tim Commerford (RATM)	SansAmp BDDI v1	Ampeg SVT-CL	bass-classic
Robert Trujillo (Metallica)	Darkglass B7K	Ampeg SVT-CL	bass-clanky

Part 3: Priority Download List

Ampeg SVT-CL (deathblossomaudio) — foundation, used by almost every artist
SansAmp BDDI v1 (jackspirited) — versatile preamp
Darkglass B3K (santo, A2) — modern growl
Darkglass B7K (tmrecprod) — versatile distortion
Geddy Lee SansAmp DI-2112 (jakegideon) — direct Geddy rig capture
Fender Bassman 5F6A (neampmod) — vintage bass
Aguilar Tone Hammer pedal (wolffire99) — warm modern preamp
GK 800 (siddonfer) — punchy solid-state

10 bass IRs already available at ~/.pedal/irs/bass-*.wav.

Part 4: Chain Architecture

Bass → NAM Model (preamp/amp) → Cab IR (bass-specific) → Output

Pedal captures (SansAmp, Darkglass B3K, Tone Hammer) need a bass cab IR after them
Amp head captures (SVT-CL, GK 800) also need a bass cab IR
Full rig captures already include cab — skip IR
Compression should be before the NAM model (not modeled by NAM)
All captures are from Tone3000 — download URLs in full report

No BDDI v2 / No SVT-VR

BDDI v2 NOT found; v1 is close (different headroom/EQ curve)
SVT-VR NOT found; SVT-CL is equivalent (same circuit, different era)

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