Musical feat on detuned piano

This interpretation would have deserved 5 star rating: It contains a wealth of musical subtleties that betrays special attention to detail without the great line from the perspective of losing. BUT: The wing is not attuned clean, quite at the beginning is a sound in the mid-treble range strikingly out of tune, I think it is an "E". And since this tone grows abundantly, I am, this audio is heard again almost in constant expectation while listening to the CD. This draws not only enormously from, but ultimately ruining the whole thing! Very sad, one should perhaps you prefer to experience the concerts of Mr. Sokolov live or persuade him, even record a studio re-recording of the Diabelli Variations.
NB: In this recording is a live recording from 1985 from St. Petersburg (!).