post: generating subtitles for songs that ship without timestamps

Tutorial on turning untimed AI-generated audio into LRC + SRT: align ASR word
timestamps against the KNOWN lyrics (SequenceMatcher) instead of trusting a
transcript, then a governor that rejects impossible anchors, refills runs by
unit-proportional duration, and enforces a 1.2 s minimum line gap.

Ships 18 English songs (342 subtitle lines, mean anchor coverage 0.96, 9/18
fully anchored) with synced lyrics plus downloadable .srt per track. Documents
both player bugs and the headless-Chrome numeric probe that finally caught them.

public/subs/look-upon-your-path.srt

@@ -0,0 +1,67 @@
+1
+00:00:09,640 --> 00:00:14,640
+Look upon the winding path where fallen leaves are blown
+
+2
+00:00:14,640 --> 00:00:19,640
+Children walking hand in hand so no one is alone
+
+3
+00:00:19,640 --> 00:00:25,039
+Even when the winter wind is cold against your face
+
+4
+00:00:25,039 --> 00:00:30,660
+Every step you take today is leading to a place
+
+5
+00:00:31,520 --> 00:00:36,600
+Shine your light into the dark, let your voice be heard
+
+6
+00:00:36,600 --> 00:00:41,600
+Rising like the morning lark, a brave and little bird
+
+7
+00:00:41,600 --> 00:00:46,679
+Though the night is long and deep, the stars are watching still
+
+8
+00:00:46,679 --> 00:00:53,000
+Spring will wake the seeds asleep upon the quiet hill
+
+9
+00:00:57,000 --> 00:01:02,159
+Write a song upon the wind for everyone who strays
+
+10
+00:01:02,159 --> 00:01:07,480
+Hope is like a tiny spark that sets the sky ablaze
+
+11
+00:01:07,480 --> 00:01:11,879
+Hold the hand beside you tight and never look below
+
+12
+00:01:11,879 --> 00:01:17,159
+There are gardens waiting where the wildest rivers flow
+
+13
+00:01:21,299 --> 00:01:26,359
+Shine your light into the dark, let your voice be heard
+
+14
+00:01:26,359 --> 00:01:31,340
+Rising like the morning lark, a brave and little bird
+
+15
+00:01:31,340 --> 00:01:36,439
+Though the night is long and deep, the stars are watching still
+
+16
+00:01:36,439 --> 00:01:45,980
+Spring will wake the seeds asleep upon the quiet hill
+
+17
+00:01:45,980 --> 00:01:49,980
+Look upon your path... the dawn is near.