I noticed, in fact, that my recording of the 10/12 comes in at 3:05-a full 10 seconds longer than yours. To my ears, however, my recording sounds faster. Probably a combination of things-more rhythmic, more even, more velocity. But it's actually quite a modest tempo that I took.
I heard the most incredibly fast rendition of 25/4 on the radio today in the car. It was Lang Lang. I must admit it was very impressive in some ways, but it didn't leave a very deep impression on me musically
Velocity is speed and direction. Velocity is three dimensional.
Given that direction is three dimensional on its own,and speed can be in any of those, doesn't that make 6 all up?
I'll have to go have another listen to yours. Depending on when you actually start and finish playing it may be even more - there's about 6 seconds of dead time in mine.Clarity in the LH probably makes a big difference to the perceived speed, and I think while I can play it fluently there is a general lack of clarity. Combination of over pedaling and the room I think. Making things like the crescendo at the peak of the LH waves come out more would make a difference too... and sometime I put a slowing rubato at the beginning of the left hand way where I could push on for a different effect of moving forward.......Either way, thanks for the kind words - I must say I'm quite impressed by your recording project with these - something I plan to do myself in the future, little (long) way to go though yet. I'm terrible at recording because I'm phenomenally picky about playing that I'm going to label as something I'm genuinely proud of.Theres a richter 10/4 that has that effect on me to a degree. Its quite insane.. sometimes I like it, sometimes I find it ridiculous.maybe its been sped up though..
At measures 7-8 you accentuate the higher note of the group, for example the first time b flat comes and then at the highest e flat. For me that stops the follow of the passage, you could try emphasizing the sense of direction on the two sixteenth notes that are repeated for example in bar 7 beat 2 the second eb d.
It seems to me like you are thinking of the main theme (upbeat to measure 11) as two separate stuff. c d . and then eb eb. Maybe it all leads to the e flat a bit more directly and less lyrically than you are playing it. At times one could make the first e flat extremely small to accentuate the passion even more.
Another example is at measure 19 and 20.... even though you are coming from a diminuendo and you should be piano the lower c comes out to strong destroying (maybe a bit too harsh of a word) the sense of direction. In my opinion that c is the subtle beginning of a climb to the e flat.