An Example of a Sonata form from Haydn would be his Symphony No. 45 in f# minor. The exposition has different ways through it instead of having a straight sentence structure throughout. There are a couple of statements and the first ones goes from the tonic to the subdominant, the second goes from the dominant seventh back to the tonic, which leads to the third statement picking up speed giving the tonic five of four, four, sixth, five, and tonic.Theme and Variation by Beethoven can be like a pack of cards a bunch of different pictures. This often happens in Beethoven’s pieces to take on a cumulative meaning, each new variation adds to the last. Most likely at the end there’s a since of return and an attempt to bring it all back together.