This Chinese Live Music Performance is…Fake?, TwoSetViolin, 6 days ago (20190209-1227)
See? Musicians can spot alleged fake musical performances. Their expertise happens to be violins.
I learned the difference between open string and tremolo. The rest are difficult to spot.
They weren’t sure if the musicians were playing to a dubbed recording or if they were playing but the music was playing loud to the audience, whom they weren’t sure was real.
Before signing off they made a VERY good point: Do not trust everything you see on the internet. Also don’t believe everything they say, because they could also be full of crap.