PLN went to bed with the CosmicFest pipeline in flight. This is the block a cold
session needs to pick it up without reconstructing anything, written because the
run outlives the session that started it.
The teardown test came back the way the design hoped: every harness background
waiter in that session was killed between turns, while all three systemd --user
units kept running untouched. So the resume instructions lead with systemctl and
journalctl rather than with anything session-local, and the expected end state is
listed in full — masters, both split directories, eda_stems.json,
master_report.json, FINISH_SUMMARY.txt, and the section plus global stems — because
cosmic-finish.service is ordered After= both producers and gets there on its own.
Two progress metrics are recorded as WRONG, since I used both and both fooled me.
Counting directories under stems_demucs/sections/ counts sections STARTED, not
finished: the directory appears the instant chunked_separate opens its four
writers. And libsndfile buffers, so a stem file sits at 44 bytes — a bare WAV
header — through minutes of genuine work. I read "4 of 14 done" off the first and
put a speed claim in commit 37eb401f on the strength of it. Judge by mtime and
flushed bytes, or simply by whether the unit is still activating.
The board now also names the first question to ask of the EDA, because it decides
a parameter that is currently an admitted guess. The air shelf sits at +5 dB
against a measured 8-16 kHz share of 0.12%, which on its face justifies far more;
it is held back because a 320 kbps MP3 puts codec hiss in exactly that band. The
EDA prints the verdict: HF concentrated in drums by 2x or more means cymbals and
the shelf can open, HF spread evenly across all four stems means noise and it
stays shut. Re-rendering on that basis costs nothing, since PLN has not yet heard
any of it — which is the one moment such a change is free.
Blockers are ordered by what actually gates a shipment. First is the canonical www
gig page, because build_release_plan refuses without it and every upload adapter
reads that plan; the derivable half is already drafted, so PLN owes four
frontmatter fields and the set's movements. Then the tone, which no measurement
settles. Then three smaller calls, and the still-unreviewed merge 2f947c2c.
Recorded as ready-but-deliberately-undone: OPAL's SoundCloud is 7 of 15 tracks
short and the re-run is idempotent, but PLN was sharing OPAL links that evening
and mutating the account under him was the wrong risk to take unattended. And a
standing warning against uploading CosmicFest's split before he approves the tone —
SoundCloud is idempotent by permalink, so a v2 re-render is silently skipped
rather than replaced, which is the take-five-drops defect waiting to happen
fourteen more times.
