"Improvisation on Pentecost Themes" was originally improvised by Ethan Haman at Christ Episcopal Church Los Altos as the postlude for Pentecost Sunday, May 24, 2015. Haman has now used the original recording to reconstruct and revise the improvisation into a fully developed composition so that others can enjoy playing this festive, spontaneous piece. Works perfectly as a postlude for Pentecost, weaving together the gregorian chants "Veni Sancte Spiritus" and "Veni Creator Spiritus" into a jubilant finale. Also suitable as an organ recital piece. Duration approx. 5 minutes. For a video of the composer playing this piece, see YouTube link: https://youtu.be/go-vJmK3Zoc .

This suite for organ was commissioned by the American Guild of Organists for the 2020-2021 Student Commissioning Project. It derives its title and source material from William Walker?s 1835 hymnbook Southern Harmony and Musical Companion. Each movement is based on one tune from the collection. The work's harmonic landscape is also derived from Walker?s hymnbook, and the interval of a perfect fifth is extensively used. The end result is an exciting organ suite that brings new life to old melodies.