I'm having a hard time defining the form of this piece, but there seems to be a fairly clear definition between sections. I think it goes something like this: A B A C A. The A section lasts until measure 24, and is expository in nature. Measure 24 brings a change in tonality from B flat major to the dominant, F major. There is also a change in dynamics here with a change from loud to soft. This use of dynamics to define the different sections is seen throughout the piece. The B section begins at measure 24 and continues until measure 32, and is developmental. A returns at measure 33, and continues until measure 44. A is of course back in the tonic key, B flat major. The c section begins at measure 44. Again, there is the dynamic contrast from loud to soft. The tonality also changes to the key of g flat major at measure 44. The C section also seems to be developmental. a returns at measure 53 for the final time in the key of B flat major.
That's it! That's my LAST BLOG! and after tomorrow kids... we are finished with theory!!! It's been fun.... but....YAY!