Parody fantasia on unknown model. Without knowing that it was a parody work, it would be impossible for me to analytically derive it to be so. It is a short work of 84 compases in a basically imitative style, dividing at 43 into exactly two equal and parallel halves.
I (1-42) Theme 1 introduces imitatively. T S – B, then cadential movement from 16-22 with an imit sub-theme (unnumbered). Theme 2 then occurs twice in T, 1st with free B counterpoint then same in S. 34-43 Free K, homophonic with some parallel 10ths.
II (43-84) Texture reduced, theme 3 begins imit section culminating in extended statements of 3 – how 3b >> largely free from K at 64 but with 2 returning in S as top of homophony until end.
Parallel structure

Theme 2 is treated rather like a cantus firmus or ostinato. Additionally, there is another important phrase which makes five appearances in 2 forms beginning at 13, 34, 46, 64, 72 and gives an upward seep. In general, the non-exposing voices aren’t relegated to subservient roles and this gives the “rhapsodic” feeling to the work.