"Invocation" is defined as the act of invoking or calling upon a deity or spirit for aid, protection, or inspiration, while a "Psalm" is a sacred song or poem. Magnificent, celebratory, and triumphant are words that aptly describe the opening of this exciting new work. After a powerful opening fanfare, the main theme (Invocation) is presented and interlaced with florid woodwind passages and driving rhythms. A simple but evocative melody, garnished with lush harmony, captures the essence of the Psalm. A return to the original theme brings us to an uplifting conclusion. This piece was commissioned by the St. Michael's College School Senior Band (Toronto, Canada) for the opening of their new theatre. Invocation and Psalm is an exhilarating concert opener for any occasion.