chopin e minor cocncerto....

[s1d1f1]

Last night I heard a chopin e minor(op.1)conceto,and I was shocked!She played it with string qvartet,and it was like they didn't hear them selves.She didn't play with real orchest.but I was wondering something,That woman is famous,in Germany,and Serbia,how can that things happen?mistakes,mistakes?And I thought I am not able to play with orcestra>My God!!

P.S !!