A [?] left in the finished lyric
Aim to transcribe all audible lyrics. Use [?] only when careful listening still cannot determine what is being sung.
Convention: A lyric you can't make out is [?].
Example
[Verse]
I heard [?]In the workbench this reads: Try to identify the lyric marked [?].
[Verse]
I heard every wordThe fix
This finding has no automatic fix — resolving it is a judgment call, so the workbench points at the exact range and leaves the edit to you.
The convention and its limits
This check detects the pattern shown above. An accepted example passes this check; it is not a review of the whole transcription.
Source
The source cited by this check:
Unknown lyric marker (opens in a new tab) verified Use [?] for unknown lyrics