I'm not too sure how popular Clementi's sonatinas are (Op 36: [http://imslp.org/wiki/6\_Piano\_Sonatinas,*Op.36*(Clementi,\_Muzio)](http://imslp.org/wiki/6_Piano_Sonatinas,_Op.36_(Clementi,_Muzio))) but they are all over the Canadian RCM books. 

As my previous questions have alluded to, I'm struggling with playing through Bach's 2 part inventions, specifically Invention 1 in C major, although the general difficulty remains no matter which one I try. I can slog my way through the invention at less than half speed, and am still making many mistakes. (I know that means I should slow down, and I do. That's not the point of the question :-) )

However, I can open up almost any of the Clementi sonatinas and play it much faster than the Bach invention and more or less from sight - I have only really thoroughly studied the F major and C major, but I've tried them all so it's not technically sight reading.

I know that Bach's inventions require the skill of hand independence and finger independence, but, looking at the Clementi pieces, don't they need the same thing? 

Clearly I have a set of technical skills that makes the Clementi pieces fit within my skill set, and clearly I lack a set of technical skills that makes the Bach pieces fit outside of my skill set. I feel that if I can identify which skills I do have and which I'm lacking, I can better focus my practicing. In particular, I'd like to look for pieces that allow me to leverage my current skill set in order to maintain my interest, but which also have passages that challenge my lack of skill in order to get better. My problem is that I don't seem to be able to distinguish which technical skills are required for which pieces, and therefore I can't really focus my practice.