The final project in this part of the course is a short improvisation on a dominant, delaying the resolution of the perfect cadence until the very end. I chose the key of Eb major with a running left hand passage based on the dominant 7th chord. The right hand has a repeated two bar phrase with emphasises the dominant and submediant notes, and adds a second melody over the top in bar three as it crescendos to the climax.
Following a suggestion in the course notes I introduced an unexpected chord in bar 6, along with a sudden drop in dynamics after the crescendo. It then works it way back to the dominant via the subdominant, before finally resolving to the tonic.