"O Sing the Glories" is an original work by Alice Parker, who is known primarily for her masterful arrangements. A festive, unaccompanied hymn-anthem that begins each stanza with an ascending scale incorporating a phrygianesque raised fourth. The seven brief stanzas are SATB, TB, SA, SATB, SAT, a quieter SATBB (with layered entrances from the lower voices upward), and a resounding final stanza with the tune in the tenor, while all other voices freely decorate around the melody.