The audio portion of this slide show is a computer generated recording of Fugue in g minor Op. 23 from Seven Pieces for Organ Op. 18-23 by Steven Monrotus.
Dedicated to organist Dr. Keith Tomazi, this 4-voice Fugue has 2 countersubjects and is written in triple counterpoint.
The audio clip being computer generated merely gives an idea of what this music would sound like on the real McCoy.
This work also has been posted on YouTube at this external link: