Willan - What is this lovely fragrance?

Choirs and Orchestra of St. John Cantius, Orchestra of St. John Cantius Church, Chicago, IL, Choirs of St. John Cantius, Christine Kelner (vocal), Walter Whitehouse (organ), Gerald Virgil (vocal), Michelle Mitsui (vocal), Eric Wallbruch (vocal), Carol Loverde (vocal), Trevor Mitchell (vocal), Stephanie...