seeing as this is a sonata, there are three section. Our WONDERFUL book decided to make it unavoidably clear where those three big distinctions were, like we couldn't find anything ourselves. So the easy thing for me to do now would be to tell you what was given to me. The exposition is from measures 1-41 the development is from measures 42-70 and the recapitulation is from measures 71-117. We begin in measure 1 in D minor, and we actually have what I consider to be two themes in our first tonal area, Mozart can do stuff like that. We reach our transition into our second tonal area in measure 15 and we get to our new tonal area by measure 25 (of course it is in the relative major of F what else would it be). Well we chill in our second tonal area for a bit but at measure 33 we enter into our closing theme. onward!
We are not at the development which begin in E flat major. he decides to first pick on our first theme from our first tonal are. there are two main motives in this development which are variations on ones which we have already heard. the first is in m. 42 of the development which is a play on the opening motive of the first tonal area. the second is in m. 60 and is a play on the motive in m40 in our closing theme of the exposition. and thats enough about that.
We are graced with the reappearance of our original first tonal area in the recap. however not every think is as is has been. we continue along on our merry way until we reach the transition in m. 84. since we have to stay in our original key this time, D minor, the transition need to...well not transition. so we thats exactly what we don't do...transition that is. well we change things up starting in m. 87 and we hear new transitional material until m. 92. this is now a longer transition and has sort of messed everything up, but not enough for M-dogg to handle. we get back like I said in m. 93, but we begin our second tonal area (which is really the same tonal area as our first) on the measure in 95 as opposed to half way through the measure. Mozart takes care of the change of stress and he goes on to treat us to a nice bit of closing material followed by a coda which brings us to the end of Wolfgang Amadeus Mozart's String Quartet in D minor, k. 421, first movement.