Thanks for your advice! You are right-the rhythm isn't exact and when resolving Ab to G, G should be played softer. The overall musical structure could also be much better. The fact is that I played this piece in my youth and I picked it up again, practiced it for 2 days and made a recording. Unfortunately I didn't have time to record myself before and listen to how I play and to play it to my professor. But he told me all those things later... I have some problems with my speed ( as you noticed ), because I find it ver very hard to play things in a moderate tempo. On the other hand, I've always had the inclination to play slower parts very slowly. But I'm working on it!