firestar5683
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Event checkpoint — clean 45 W native replay
Prism completed a full 254.1-second muted route on the event comma + Chestnut with six accepted fresh music jobs, no holds, no underflows, no worker failure, and clean causal timing. Camera, path, lanes, navigation and ten curve activations were recorded. See event evidence. This is an instrumented replay pass; physical listening, Bluetooth and modeld coexistence remain unverified. Community judging has not begun.
Event checkpoint — RoadScore branch
Current event work and exact failures are recorded in EVENT.md. Source is migrated. Official Chestnut validation and 30 W Prism preparation pass; native replay still has unresolved timing/ending-context failures. A 45 W fixed-decoder comparison passed 40/40 and full-model testing is starting. No event-baseline or judging-batch pass is claimed. All automated audio remains muted; no files have been pushed by this work.
Everything below describes preserved pre-event evidence, not the current event unit.
Current result — Prism demo hardening from 08ba22e
Prism is the primary native demo candidate; Aurora is the verified selectable backup. Circuit is archived. The requested instrumented regressions pass. The intermittent GPU/link fault remains unresolved, so this is not a production-reliability claim.
- The final pre-commit gate catches committed quiet gaps before playback, preserves soft passages/intentional outro fades, and permits at most two same-role deterministic rerolls within the buffer deadline. Known bad native/reference cases and real route rerolls are preserved.
- Thirty native continuations produced 840s of new music in 694.97s (0.827 RTF); all remain accepted by the final policy. Final-policy full curve replay measured 0.888 RTF including qualification/persistence, with 64.8s minimum buffer and no two-second quiet span.
- Full native Prism arrival, curve and community routes passed normal UI/camera/path/lane/causal checks without underflows, emergency fallbacks or output flags. Aurora completed a full 254.2s route and archived correctly. Its startup exposed screen-off CPU interference; the private CPU-only supervisor fix subsequently corrected that transition automatically during SA3 preparation.
- The first composer-stop test exposed callback blocking. After the fix, four accepted-music holds completed with zero output errors and truthful DEGRADED status. No reset or model handoff occurs during playback.
- The smaller fixed-chunk decoder reproducer localizes genuine link loss to after submit and before the driver timeout handler. Compute-only also fails; a 40-repeat idle comparison passes. Root cause is still unknown.
- Mac fresh retest, SA3 and Mac/native stored replay pass. The first Mac fresh test missed deadlines during a 1.138s transport burst; retain that operational risk and prefer native playback for the demo.
- Curve Apex V4 and the conservative bridge are available in the focused review. Human musical/salience judgment and live modeld coexistence remain unverified. Twenty focused tests and the existing regression coverage pass.
Evidence report · Focused listening review · Launch/recovery checklist · Validation.
Clean shutdown verified: owned workers/replays stopped; locks free; normal offroad UI/manager and saved CPU settings restored. Mac and bench remain muted, both session mute locks are present, and no speaker or Bluetooth output was intentionally enabled. Public StarPilot is clean; MusicGen is untouched; route/audio artifacts remain private/local.
The records below are historical and are superseded by the current evidence above.
Historical result — ACE stability pass from b719139
ACE remains the strongest composition candidate, but the full stability/continuity gate has not passed. Read the current report and Mac/Chestnut listening review. Earlier checkpoint claims below are superseded by this pass’s evidence.
- Deterministic Mac/native harness, three new identities at30/45/60s, five identical native repeats, same-latent VAE tests, layer/step diagnostics and the15–60s shape sweep are complete.
- Fixed45s continuations retained555s of new music in454.17s compute (RTF0.818). Two20-job soaks passed. Three complete native routes reached EOF with39accepted fresh jobs total and zero underflow/fallback/hang. Native stored playback and a headless Mac fresh ACE transport retest passed.
- Aurora and Circuit each completed six linked native sections, with exact prefixes and at most0.1/0.2s measured quiet. Their prepared bundles are available; human approval and full-route tests for these two profiles remain pending.
- The terminal-fade guard repairs the earlier flow, but full Prism routes exposed5.1s and2.7s interior gaps. Both reproduce with identical inputs in the official reference. Seed/role/prefix/preservation/refreshed-timbre counterfactuals did not provide a reliable real-time fix. Musical continuity remains failed.
- Three56s decoder/runtime failures are preserved, including two VAE-only probes at2.470GB allocation. The latest captured an unhealthy link read before process teardown. Recovery restored the bench; initiating cause remains unresolved. Do not claim production reliability.
- V3 signal/curve gestures are rendered and tested; perceived salience and subjective port fidelity require human listening. Exact reconstruction of the old approved performance is blocked by missing original random preparation state; honest recovered-code/new-boundary A/Bs are supplied.
- Cold ACE buffer preparation took about12.6minutes. Warm throughput does not imply instant readiness. No live driving/modeld coexistence claim follows from offroad replay.
Fresh native SA3 fallback passed:116.6s captured, three jobs atRTF0.776–0.780, zero underflows/fallbacks/output flags. All owned workers/replays have stopped; the normal offroad bench UI is restored and CPU restoration is verified. Mac and bench remained muted; no speaker or Bluetooth output was intentionally enabled. Public StarPilot is clean; route/audio files remain private/local. MusicGen is untouched.
Previous checkpoint record (b719139; historical)
RoadScore — ACE Chestnut result
ACE now generates and decodes music locally on Chestnut faster than playback at useful short horizons. Keep it as the primary experimental composer; SA3 remains the working default/fallback. The prepared-identity continuation loop needs no Mac during generation. Arbitrary new identity preparation is still a Mac development step, not a demonstrated comma CPU capability.
Start with the listening review. It includes native music, a142s verse→prechorus→chorus→bridge→outro, arrival, distinct V2 gestures, and the actual native road score. Nothing autoplays. Human approval applies to the earlier Mac ACE reference; native continuity, endings, and gesture salience remain unapproved until listening.
| Measurement | Result |
|---|---|
| FP16 generation + native decode | 15s in7.42s;30s in12.55s full decode or15.39s bounded decode;45s in22.52s |
| Warm continuation | 28s genuinely new material in20.36–20.97s isolated;21.57–21.81s during native replay |
| Longer horizons | 60s takes80.07s;90s latents decoded only after recovery, so no complete90s RTF claim |
| Memory | |
| Cold readiness | 447.8s including initial58s score and both graph shapes; preparation must precede playback |
| Native ACE replay | Full254.3s arrival route,7 accepted fresh sections, minimum buffer8.1s; zero fallbacks, underflows, or output flags; camera/path/lanes/nav/10 curve activations verified |
| Arrival | 41.2s of generated outro heard before cadence; weak harmonic confidence used source-tail release, not an invented chord |
| Mac fresh ACE | Composer kept up, but PCM transport failed clean timing:46 starved callbacks /21,257 late samples. Preserved as a failure, not a pass |
| Stored-score regression | Mac120s: exact samples, zero flags,0.604ms alignment. Native ACE120s: exact samples, zero flags,8.104ms |
| Fresh SA3 fallback | Mac120s,3 new sections atRTF0.782–0.784, zero starvation/late frames/output flags;0.524ms alignment |
| Precision | Native numerical checks pass against official references. INT8 storage offered no speed/resident-memory benefit; rejected. Explicit32-token alignment failed the unchanged maximum-error gate; rejected |
Use the existing command with --composer ace to select the experimental prepared backend. Omitting it keeps SA3. Runtime consumes causal cereal messages, not future route files. Route-owned archives remain private and compatible with stored-score replay. No public StarPilot or MusicGen edits.
Readiness classification: Level3, demonstrated prebuffer viability; Level4 throughput evidence on a full offroad route, not a reliability or production claim. Two earlier stress-test GPU hangs required recovery. modeld coexistence and real driving are untested. ACE→SA3 seamless handoff is not implemented. A Mac transport-timing issue remains explicit. Final regression and cleanup details follow in the engineering report.
Architecture, experiments and limitations · Native replay evidence · Mac failed capture evidence.
Final checks:68 unit tests and5 V2 gesture tests pass; native ACE and default SA3 fresh regressions pass as described above; stored playback passes on both hosts. Owned workers are stopped, normal bench UI is restored, real offroad state verified, and CPU settings restored to their saved snapshot. Mac and bench remained muted; no speaker or Bluetooth audio was enabled.
Previous pass (historical)
RoadScore — composition strategy review
Continue from private checkpointa7dc34f /overnight-review. The human rejected the previous section-bank music. That verdict stands; the old engineering successes do not establish musical acceptance.
Start with the new listening review. One page contains SA3/ACE comparisons, YuE's limited result, generated transitions, source-derived gestures, actual arrival excerpts, replay evidence and timings. Nothing autoplays. All musical judgments remain pending human listening.
Recommendation
Keep SA3 as the demonstrated fast Chestnut backend, but do not assume it has solved composition. Listen to ACE-Step's90-second structured piece and outro next to the single aggressive SA3 control. ACE is a plausible longer-horizon composer candidate; it has not earned a musical win or a Chestnut port. YuE ran but was slow and much of its latter half was near-silent. No fine-tuning, compatibility layer, or speculative accelerator port was undertaken.
The minimum prototype separates longer-horizon generated material from immediate source-derived musical gestures. It now uses continuous generated transitions rather than the rejected independent section bank. This is still an experiment, not a claim of convincing verse/chorus hierarchy or seamless multi-model composition.
What changed and what was measured
| Area | Evidence |
|---|---|
| SA3 control | One fresh K-pop/game-score identity, five extreme roles, three context-conditioned transitions.28.05s role outputs take about19.3s. Live26.006s continuations run at medianRTF0.77–0.78 on Chestnut. |
| ACE-Step1.5 | Official MLX stack on local M1 Max.90s in108.03s (RTF1.20); five30s reference-conditioned roles take63–91s;40s transition73.33s. Actual decoded WAVs retained. |
| YuE2 | Official MPS implementation generated81.279s in374.55s (RTF4.61), without hitting token caps.37.7s near silence; symbolic keyF minor despiteD-minor prompt. No further porting investment. |
| Gesture bank | Source-derived hats, fills, crashes and finite nav/arrival phrases. Tempo/phase estimated; no new guessed chord pitches. Synthetic first-signal onset115ms, zero scheduling lateness. Physical response also includes polling/output buffering. |
| Causal road controls | Native signal, curve and nav inputs produced gestures. Upcoming curve payoff follows current forecast revisions until one beat away; no future route data. Stored overlay exposes only decisions already reached on its sample timeline. |
| Arrival | Native arrival:35.236s of outro-conditioned material before cadence. Full community run:21.653s, with corrected counter. Whether either sounds like an intentional outro is unverified. |
| Native fresh replay | Arrival253.9s/8 jobs and curve176.3s/6 jobs; zero fallback loops, renderer underflows or output flags. Camera/path/lane evidence preserved. |
| Mac fresh replay | Full community route571.6s/21 jobs, normal UI, zero starvation/late samples/output flags, maximum alignment0.324ms. Route-owned archive complete. |
| Capture limitation | Fresh video-recording attempts failed timing checks on both hosts; originals retained. No tolerances weakened. Separate stored-score video validation follows below. |
| Tests | 63 passed, including real-log future-mutation causality, gesture scheduling/cancellation, outro accounting and archived decision visibility. |
Full architecture, model screen and limitations · Measured replay evidence · Preserved failures · Local route inventory.
Musical acceptance questions
- Obvious SA3 section hierarchy? Pending listening.
- Better generated transitions and fewer audible splices? Pending listening. Context-generated comparisons exist; no seam-quality claim.
- Alternative structurally better than SA3? Pending listening. ACE is the next comparison, not a declared winner.
- Alternative ready for Chestnut? No demonstrated port. Memory/runtime estimates do not establish impossibility or a pass.
- Useful hybrid? A plausible direction, partly prototyped. Immediate gestures and long-horizon SA3 conditioning run; a coherent ACE→SA3 composition system has not been demonstrated.
- Immediate signal / curve punctuation? Sample-timed prototype demonstrated. Beat/key accuracy and musical effectiveness remain unverified.
- Actual outro before cadence? Generated outro-conditioned material demonstrably played first. Its musical concluding behavior still requires a human.
- Existing replay intact? Fresh Mac/native tests passed without video recording. Recording failures are explicit; stored tests and final cleanup are appended below.
All work remains private in Desktop/RoadScore and the offroad bench. Cached routes were not redownloaded or published. MusicGen and the public StarPilot source were untouched. Product audible defaults were preserved; this development session remains muted.
Stored replay and shutdown — complete
- Mac stored replay with normal-UI video:180.03s, exact contiguous archived samples, no generation or output flags, maximum clock alignment0.583ms. Synchronized video. Captured UI has occasional frame gaps (maximum149ms); timestamps are preserved.
- Native stored arrival:253.84s of callbacks, contiguous archived samples verified, no generation or output flags, maximum clock alignment9.90ms. Normal bench UI restored afterward.
- Resident Chestnut worker stopped; saved CPU settings restored exactly. Real bench state remains offroad.
- Mac output muted, both session mute locks retained, all tested audio streams muted. No speaker output or Bluetooth audio output was intentionally enabled; bench test output remained muted. Physical listening is deferred.
Source/strategy checkpoints this pass:08246ed,0b72f6e,9ee1dbb,dc27742; final private checkpoint recorded in Git. Earlier rejected music and both failed capture attempts remain available as evidence.