Complete Piano Sonatas IV-Volume IV of Scriabin s Complete Piano Sonatas unites Sonata No. 9 op. 68 (nicknamed Black Mass but not by Scriabin) and Sonata No. 10 op. 70. These two works originated virtually at the same time in 1911-13 and 1912-13 respectively.Christoph Flamm has given both sonatas a fundamentally fresh look in this new Urtext edition. Exploiting all the autograph sources including Scriabin s sketches and drafts he has arrived at surprising new readings. His foreword sheds informative light on the genesis and significance of these pieces; the many variants are documented in detail in the Critical Commentary. The higheditorial standards are complemented by spacious engraving and practical page-turns.- Scholarly-critical Urtext edition including the latest research findings.- All autograph sources consulted including sketches and drafts.- For students pianists and teachers.- Detailed foreword (Ger/Eng) and Critical Commentary (Eng).