I don't know how many of you have ever even heard of it, but from what I've played of it so far, I'd say Violette's Sonata 6 is tough. Really tough. In just the first 2 pages, I think it hits every note on the keyboard in jumps that at times cover several octaves, striking them very fast as well, with a range in dynamics from pp to ff. To tell you the truth, while I find his other keyboard works interesting, I really like Sonata 6. Unfortunately, there's no recording out there. If I learn this piece well by the time I audition for a conservatory, I could perform it as modern or contemporary.