Fantastic!!! Thank you!!  That's extremely helpful.  That biography contains details of his early and late life that do not exist in the other sources (I've got his time in Paris pretty well fleshed out  Slonimsky's reminiscences in Perfect Pitch are full of juicy details).  I'm still trying to understand all the Orthodox religious references in some of my other sources; e.g. two resurrections?  I'm a little out to sea on some of that.  It's hard to write about his 12-tone method without doing forbidden "original research" because it seems no one has really studied it in depth  Sitsky maybe more than anyone else  I really want to look at one of the scores.  Now if only I had a public domain illustration or two ...  Anyhow now I can cite that biography, thanks to you!  I'm presuming that the "World Encyclopedia" in Russian is a reliable source.  (Everything sounds right, and matches up with Grove and the others I've got.)  Cheers,  (talk)