The showpiece of this concert will be the Missa Dei Filii (Mass for the Son of God) by Jan Dismas Zelenka, this distinctive and often overlooked composer's most ebullient choral work. Zelenka's music is original, distinctive, and offers dazzling rewards to the listener. Accompanying the Mass on the program are selections from the Cantatas for Advent and Christmas by Zelenka's admirer, Johann Sebastian Bach.