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feat(274): add lyrics, subtitles and asset BOM

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Text-based deliverables for the 274 video, synced to the lyrics source of
truth in the wiki repo (ncmr-songs wip/274/274.lrc at c7e2494, "put the lyric
back into road order").

- 274.lrc: byte-identical copy of the wiki LRC.
- 274.srt: generated from it with scripts/lrc2srt.py (117 cues).
- 274.ass: hand-styled in Aegisub; every event re-timed to the LRC, with each
  address shown from its own timestamp until its section's last place ends.
- BOM.md: untracked assets with BLAKE2b hashes — release audio
  274_release1.wav, the white background plate, and the Noto Serif JP
  Medium/SemiBold fonts the ASS uses.

Verified: all 117 ASS events and SRT cues match the LRC's order, text and
timestamps.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PLt25nCVMsoroKALYUBu6u
This commit is contained in:
Mikkeli Matlock
2026-09-16 19:22:50 +09:00
parent be81469c7c
commit 7da9a6df25
4 changed files with 770 additions and 0 deletions
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song-274/BOM.md
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# Bill of materials — 274
4 file(s), 238.8 MiB. Generated by `scripts/bom_gen.py`.
## audio
file size hash description
------------------------ --------- -------------------------- -------------------------------------------------------------------------------------------------------------------------------------------------------------
`audio/274_release1.wav` 226.8 MiB `4287774b506177d282b8a035` Release master of "274" (updated 2026-09-16, replaces 274_release.wav) — stereo, 48 kHz, 32-bit float PCM, 10:19 (619.27 s). Peak -0.4 dBFS, mean -12.4 dBFS.
## images
file size hash description
------------------ -------- -------------------------- ------------------------------------------------------------------------------------------------------
`images/white.png` 11.1 KiB `717ddffe599554fb2dcdf855` Background plate: plain pure-white (#FFFFFF) 1920×1080 RGB image, used as the still for the PV render.
## fonts
file size hash description
-------------------------------- ------- -------------------------- ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
`fonts/NotoSerifJP-Medium.otf` 6.0 MiB `b3aa1bf0e4aeb96623aeaab1` Noto Serif JP Medium (SubsetOTF/JP, v2.003, SIL OFL 1.1) from notofonts/noto-cjk release Serif2.003 (12_NotoSerifJP.zip). Used by 274.ass styles transparent_lyrics_en, transparent_lyrics_jp.
`fonts/NotoSerifJP-SemiBold.otf` 6.0 MiB `81863c254d5833df489433c4` Noto Serif JP SemiBold (SubsetOTF/JP, v2.003, SIL OFL 1.1) from notofonts/noto-cjk release Serif2.003 (12_NotoSerifJP.zip). Used by 274.ass style transparent_title.