Toccata and Fugue in A minor - (2016)
The raised sixth and seventh of the harmonic minor are featured at the outset, and the lowered sixth of the melodic minor is introduced at the large half-cadence.
The fugue subject features the harmonic minor a gesture answered by the melodic minor in the pedal, and then in augmentation as at measure 86 and thereafter.
7 pages, circa 5' 40" 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.
Toccata and Fugue in A minor