are the thirds together or a sort of rocking thirds? i loved this duo. i'm just wondering why so much movement in the air, though? don't you have more opportunity to lose your spot? also, what about coming down from such a distance and causing 'key slap?' the hardest you can get the hammers to perform is basically your limit on any piano.
i like, however, the energy that you pull with the piece and from each other. if you were both not to know that anyone was watching - and performed this piece much closer to the keys - i'd the sound quality better (lacking extraneous noises and unwanted harmonics - unless you wanted those harmonics).
but, this is very picky and probably very rude of me to say. sorry! it's just that when you post on a forum -you're bound to get critical review sometimes. it's not like we're the basic audience that's going 'oh, look - they can play thirds.' it's sound quality, too.
***I LOVED IT! the cossack ride was definately a cossack ride!