Frank La Rocca extends the genre of the festal Missa solemnis in his Mass of the Americas, a sublime setting of the Traditional Latin Mass for choir and orchestra. La Rocca weaves a rich tapestry with serene Gregorian chants, folk melodies from 18th-century regions of México, and florid praises in Nahuatl, the language spoken by Our Lady of Guadalupe to St. Juan Diego in 1531. Cultures past and present are joined musically as a witness to faith, hope, and reconciliation in this masterpiece of liturgical art.