I have the urtext edition and there isn't a decrescendo there. I do have the Piano marking though at the beginning of the downward passage. I don't see how the broken octaves don't lend themselves to rubato. Maybe I am missing something there. I do somewhat agree with the surprise aspect. boliver
With the Beethoven, try recording yourself and seeing if you like listening to the effect as much as you enjoy playing it. It's worth noting that it's quite easy to get into the habit of doing something because you like doing it. This applies especially with rubato. At first it starts off with a bit of flexibility, and with each repetition it becomes more and more exaggerated. Before you know it you have completely lost touch with what you should be aiming to create. Not that I'm suggesting that's what you're doing here. But listen, and then compare your rendition to that of as many other practitioners as possible. Listen to the mood other players create and see if you feel your rubato is still applicable.You've probably sensed that I would discourage your suggested rubatos (rubati?). There is certainly scope in a few places in this movement for a bit of flexibility, if you wish, but you have to read into the 'writing' a bit more deeply to find those places. I would not encourage your particular rubato places because I feel the LH quaver rhythm should not be disturbed. Beethoven seems to be building up something which is rather greater than your rubato would suggest - in fact the climax is b 33, not b 22. Now consider bbs 41-48. The writing here is free from the 'relentless' quaver movement of the previous passage. Furthermore, Beethoven asks us to play 'con espressione'. Whatever you do, make it subtle, but if you want to add some flexibility, here would be the place to do it. For instance, you could us it to make the fortissimo chord more special by 'placing' it and holding it just slightly.Those are my thoughts anyway. The Haydn I don't know.Richard.
sure Beethoven's sonata 2/1 first mvt.here are some places.Measure 20: the RH begins on the f flat. I like to give a little rubato here and accelerate into the SF f flat in measure 22: I really like this effect wherever this pattern is ued in this movement.
Measure: 28 I like to rubato on the 3 eighth notes in the RH and in the same patterns in the following measures. that is the main points on the beethoven. I do it acouple of other places, but that is mainly feel. I never think about it, it just happens.