Hi All, Thanks for the replies so far. jrcramer: I think I just assumed the piece is coherent since it was written by Bach. I think I can see that the piece is divided in two sections, where the first section has a consistant pattern in the right hand, and where the second section has a "somewhat" consistant pattern also in the right hand. I'm not sure how or why the two sections relate to each other. pervycreeper: I didn't know it was partly written by Bach's son. I guess I do see the consistent figuration (at least in the first half) as a kind of coherence. I'm not sure, though, at what point something is considered coherent or not-coherent. orchdork02: If I understand correctly, the coherence is created by the use of a particular figuration (or group of figurations)? I think I'm particularly confused as to how coherence can be achieved in a "through-composed" piece (like the Bach piece above). In a longer piece, I wouldn't think one can continue to use the same figuration(s) continuously? Thanks again for any insights