The audio portion of this slide show is a computer generated recording of Introduction & Fugue in G Major Op. 20 from Seven Pieces for Organ Op. 18-23 by Steven Monrotus.
Dedicated to the memory of pianist/organist/educator Henri DeKiersgieter, this piece is a 4-voice Fugue with 2 countersubjects written
in triple counterpoint paired with a related prelude in trio texture ending on a half cadence.
The audio clip
being computer generated merely gives an idea of what this music would sound like on the real McCoy.
also has been posted on YouTube at this external link: