Advance alternating lyrics during interludes

[ryokun6]

Summary

• shift alternating interlude windows forward so the display shows the upcoming lyric pair instead of holding the outgoing line
• attach inline interlude countdown metadata to the upcoming lyric row in the renderer
• refresh alternating rows immediately when playback exits a long interlude so next+1 does not flicker out and back
• avoid timer starvation in alternating lyrics by detecting long-interlude exits from adjacent line-index changes instead of rerunning the delayed row effect on every playback tick
• sync the alternating row correction before paint so the final stale frame does not flash during the next+1 handoff
• update focused karaoke interlude tests for even and odd alternating layouts plus the long-gap handoff helper

Testing

• bun test tests/test-karaoke-interlude-display.test.ts
• bun run build

  

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Last updated at: 2026-04-04 07:03:51 CET