Based on a text by the visionary St. Hilegard of Bingen (1098-1179) this a cappella motet is characterized by chant-like melody lines and textures ranging from simple unison and tww-part counterpoint to rich chordal utterances. The piece has a strong sense of tonal centre, enriched by modal inflections. For mixed choir (SATB) a cappella, with piano accompaniment for rehearsal only. Latin.
O Ignis Spiritus was commissioned in 1994 by the Erskine and American United Church of Montreal, Canada.