Please see the score attached. The melody is in the inner voice but I've highlighted it using a coupled harpsichord in the playback, so it should be reasonably audible. There's some imitative counterpoint too (e.g. b9-10 upper, b31 upper).
I really enjoyed the work up until the last section with the chromatic runs to the conclusion ... to me the work is very creative; however, the chromatic runs seem mundane in comparison to the more creative opening and mid-sections.