[2][3] As the event is rare, Widor saved the music for more frequent use by assigning it to an anonymous Easter hymn in Latin,[4] a text that appears nowhere else, and may have been written by the composer.

Widor had a choir at his disposal, formed by the maîtrise of the church and around 200 "baritones" from the seminary.

[1] The single work was published by Dr. J. Butz in 2008 in an arrangement for one organist, also with the alternate text, Sacerdos et Pontifex.

A middle section in A-flat major turns to counterpoint and softer, more melodious singing, before a recapitulation of the first motifs that leads to increasing dynamics and more animated fanfares.

[2] The composition was recorded in 1996 by the Westminster Cathedral Choir conducted by James O'Donnell[4] in a collection of masses and motets by Widor, Vierne and Dupré.

[6] It was recorded in 2015 by Les Petits Chanteurs du Mont-Royal at Mount Royal, Montreal, with organists Vincent Boucher and Jonathan Oldengarm, and conducted by Gilbert Patenaude, in a collection of choral works by Widor and Louis Vierne.