The audio portion of this slide show is a computer generated recording of Postlude in e minor Op. 29 from Four Postludes for Organ Op. 29-32 by Steven Monrotus.
Dedicated to Reverend Charles Coy, this piece is an energetic 4-voice fugue with 3 countersubjects and is written in quadruple 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: