Ever since I wrote it last year, I've been meaning to transcribe the clarinet part of my trio Visiones (after Goya) for violin. (This may be because I'm a violinist and I don't want the likes of Mark Simpson to be having all the fun.) There are range problems, of course, but after listening many times to Chris Stout's version of Eileen's Lament, in which he tunes the bottom string down to E - and playing in this tuning for a bit myself, I'm convinced it's a good solution. I don't think you can get away with playing particularly loudly on such a slack string, but when played gently it's wonderfully dark and strange. Plus, you get some fun new double stop harmonics possibilities that make a fine stand-in for clarinet multiphonics.
Score and parts available from Faber Music - contact firstname.lastname@example.org