In playing such pieces I always aim to keep the performance in an improvisational style, as I suspect that's how many of these pieces were originally conceived. I did take chances in this recording (as it's live and the piece is pretty difficult it's hard not to!). Not all of them worked - there are some inaccuracies which I would correct if I was recording it in a studio - but I think it's far better to take risks and enter into the spirit of the piece rather than concentrate on a dull but accurate projection of one note after another. (Horowitz Carmen Variations being a good example, he's certainly not technically perfect in it, but it doesn't matter).
I agree completely to all that you have written here! You have really well done!
It was recorded in concert on a Steinway Model D, as you say a very nice piano. I've played on that particular instrument a few times now and it is a pleasure to play. I recorded it with an Edirol R09-HR and with borrowed professional microphones; I can't remember which specific make though.
Wow, that´s interesting, how nice even an Edirol can sound with professional microphones!