Try measuring an unrecorded idea with a ruler, or a scale in the physical realm.
From the evangelicaloutpost.com
Truesdell, putting to use a sheaf of unrecorded Evans arrangements for big band.
From the nytimes.com
Then the full council passes it with no discussion and an unrecorded voice vote.
From the tennessean.com
There were no previously-unrecorded songs among the fifty-six tracks on the set.
From the en.wikipedia.org
Candidates, of course, often say things on the hustings better left unrecorded.
From the time.com
Over the past few months two men have been ill with a previously unrecorded type.
From the economist.com
We don't want anybody's history of suffering to go unrecorded and unacknowledged.
From the en.wikipedia.org
But that figure is likely to be misleading, as mild cases might go unrecorded.
From the guardian.co.uk
Events during this period have gone unrecorded as a result of Dreamwave's closure.
From the en.wikipedia.org
More examples
Live: actually being performed at the time of hearing or viewing; "a live television program"; "brought to you live from Lincoln Center"; "live entertainment involves performers actually in the physical presence of a live audience"