Little Fugue in A flat minor - (2017)
A subject stressing the augmented second between the lowered sixth and leading tone in the minor appears in the dominant and subdominant regions.
3 pages, circa 2' 45" an MP3 demo is here:
The score is available as a free PDF download, though any major commercial performance or recording of the work is prohibited without prior arrangement with the composer. Click on the graphic below for this organ score.
Little Fugue in A flat minor