The slopsmith→feedBack rename updated the diagnostic constant in server.py
(_BUILTIN_DIAGNOSTIC_SOURCES), the build script, README, and the calibration
test to `feedBack-diagnostic-basic-guitar.sloppak`, but the committed data
file was never regenerated/renamed — it stayed `slopsmith-diagnostic-...`.
Result: _seed_builtin_diagnostic_sloppaks() finds no matching source, silently
skips seeding, and the onboarding "Play it now" button (profile.js step 4 →
window.playSong) loads a file that isn't in the library. The server replies
{"error":"File not found"} and highway.js surfaces it as a native
`Error: File not found` popup. Affects all platforms.
Pure file rename to match the (already-renamed) code; no logic change.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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|---|---|---|
| .. | ||
| build_diagnostic_basic_guitar.py | ||
| feedBack-diagnostic-basic-guitar.sloppak | ||
| README.md | ||
FeedBack diagnostic sloppaks
Generated, non-copyrighted mini-songs for technique-assessment style checks. Report-only — they do not change gameplay settings or detection thresholds.
Basic Guitar (POC)
Artifact: feedBack-diagnostic-basic-guitar.sloppak
Contents (~55 s):
- 3 s count-in (quiet click)
- Open thickest string, open next string
- Thickest string, 5th fret
- Repeated E5 power chords (thickest open + next string fret 2)
- Repeat pass: open, fretted, power chords again
Sections: Intro, Open Strings, Fretted Note, Power Chords, Repeat Check.
Manifest includes a custom diagnostic: tag (ignored by the loader today;
for future Technique Assessment integration).
Rebuild
From the feedBack repo root (requires ffmpeg; the feedBack Docker image
has libvorbis, Homebrew ffmpeg may use the built-in vorbis encoder):
python3 docs/diagnostics/build_diagnostic_basic_guitar.py
Builtin seeding
On library scan startup (and periodic rescans), the server copies bundled diagnostic sloppaks into the user DLC folder when missing or when the bundled source is newer:
DLC_DIR/diagnostics-builtin/feedBack-diagnostic-basic-guitar.sloppak
Source: docs/diagnostics/feedBack-diagnostic-basic-guitar.sloppak (next to
server.py in dev; must be included in the desktop bundle — see
feedBack-desktop/scripts/bundle-feedBack.sh).
Unlike tutorials-builtin/, diagnostics-builtin/ is included in the
library scan. Tracks appear under FeedBack /
Technique Assessment Diagnostics.
Existing destination files are not overwritten unless the bundled source
has a newer modification time. User files elsewhere (e.g. diagnostics-test/)
are never touched.
Manual install / test
Normally seeding is automatic once a DLC folder is configured. To test a custom copy or an unreleased build:
- Copy
feedBack-diagnostic-basic-guitar.sloppakinto your FeedBack DLC folder (e.g.diagnostics-test/or any scanned path). - Restart FeedBack or trigger a library rescan if the song does not appear.
- Load FeedBack Diagnostic — Basic Guitar.
- Play the Diagnostic Guitar arrangement.
- Confirm the 3D highway shows open notes and power-chord gems.
- Turn Detect on — note_detect should push the chart to the desktop
verifier on
song:readylike any other sloppak.
Future
- Bass diagnostic sloppak
- 7/8-string guitar variants
- Drums (
drum_tab.json) - Piano/keys (separate wire model)
- Detection Health “Run Basic Guitar Diagnostic” launch button (note_detect)