The manuscripts and published editions of the sacred choral works by Belgian composer Joseph Jongen sacred choral music were collected and listed, detailing the discernable pertinent characteristics of each work. Jongen is predominantly known for his organ works, but his choral works constituent a worthy contribution to the vocal music repertoire, especially his Mass, Op. 130. Jongen's music reflects the Impressionistic style while stemming from the school of César Franck. Choral directors and other musicians interested in Jongen's sacred choral works can use this work when exploring new repertoire. A short overview of Jongen's life is included based upon the information given in John Scott Whiteley's comprehensive book, Joseph Jongen and His Organ Music. The conductor's analysis provides a complete description of the Mass, Op. 130 with rehearsal and performance considerations. Phrase analysis graphs enhance the written analysis, and a discography of Jongen's sacred choral music completes this work.

Belgian composer Joseph Jongen (1873-1953) was an eclectic composer who successfully maintained his own unique musical vocabulary—particularly in his piano compositions. Jongen composed very little between 1940-1941—the period in which he and his family fled to the countryside of Mazères, France, living as refugees for several months before returning to Sart-lez-Spa, Belgium, due to the outbreak of WWII. Reflective of this time in his life, Vingt-quatre petits préludes dans tous les tons pour piano, op. 116 is composed in a particularly intimate and despairing way. Through a complete Schenkerian analysis and outline of the musical framework of op. 116—Jongen's last collection of piano pieces—this dissertation sheds light on the technique, imagination, and uniqueness of Jongen's WWII-period piano compositions. More specifically, this research outlines the deep-level tonal and formal structures, investigates the cryptic semantic meaning and intimate personal expression, and defines the aesthetic achievements of Jongen's Twenty-four Little Preludes in All Keys for Piano, op. 116.