Dover has a volume of all 10 Sonatas. It's a copy of a Russian edition. Great buy.I've used the Peters for reference. Good for checking fingerings. The 10 Sonatas are divided into two volumes.
Which editions are best to purchase? I'm looking for Op. 6 Sonata º1 and Op. 30 Sonata º4.Don't say Henle Verlag, because they haven't published these yet, and won't until 2012 or something (I wrote to the editor), god damn them.