PLN, auditioning CosmicFest: "at 22:42 its end of reose_rouge, theres a loud blip
noise, at 22:44.9 its the start of rose rouge, could we cut noise and blend
better?"

The lab could only ever answer one question — where does the next track start —
so garbage living in the 2.9 s BETWEEN two tracks had nowhere to go. It survived
as prose in a comment box, which no downstream tool reads.

`n` marks the playhead as noise and deliberately leaves the cut call untouched: a
blip between two tracks is not an opinion about where either begins, and forcing
it through the cut field would corrupt the one number the mastering chain trusts.
`N` clears them, because a mis-tapped defect marker you cannot remove is worse
than no marker at all.

They render in warm orange, distinct from every existing mark colour: those are
all CANDIDATES for a cut, and this one is the opposite — a place to avoid.

Exported from both the decided and skipped blocks, so a seam PLN rejects can still
carry "and there is garbage at 22:42". That combination is exactly what happened
here and exactly what the old export could not represent.