Audio of Vladimir Sofronitsky plays Alexander Scriabin's Sonata No.4 Sofronitsky was the son in law of Scriabin whose wife claimed he gave most authentic interpretations of Scriabin's works. I learnt of his existence only recently while researching on Glenn Gould.
(Comment: The following is a long repost of the intro to the release of his Scriabin CD (by Denon) in chinese , not sure why the article talked about it as if it's a Chopin CD. Included here as background on Sofronitsky.)