Markus Hinterhäuser, piano. Galina Ivanovna Ustvolskaya (1919 -- 2006): Piano Sonata No. 3. in one part (1952) First performance: 16 February 1972, Leningrad (Oleg Malov). Duration: 17' Notes by Frank Denyer: "Written three years after the Second Sonata, the third sets out on a more extensive exploration of similar regions. It is as if the composer knew that behind the door she had opened in the second movement of Sonata 2 was a richer and more varied potential than she could then realise. A larger canvas was required, and the single movement of the Third Sonata is the longest in any of the sonatas. This is music of magnificent obsessions and stark brutality, but there are moments of inner reflection that have a hidden vulnerability. The very deliberate pacing of the music is precisely indicated by the composer`s many speed markings. At various times the music either pushes on or slightly holds back, although these variations are subsumed within the same inexorable crotchet value that goes from beginning to end, almost without interruption." Download score [PDF file, 695 KB, 15 pages, facsimile]: http://en.scorser.com/Out/4776977.html Interesting fact: she employs a triple flat (A♭♭♭) in the 3rd sonata at 13:44 , see page 13 of the PDF file (page 30 of published score). An asterisk explains it: "sic! a whole tone lower". PLAYLIST: https://www.youtube.com/playlist?list=PLBUo45BaR-Yx2HxznsomIPyt69cwZzbUe