Encore Atlanta is the official show program for The Fox Theatre, Atlanta Symphony Orchestra (at Woodruff Arts Center and Verizon Wireless Amphitheatre), Alliance Theatre and The Atlanta Opera. In this issue: Holiday Concert Series Thursday and Saturday, December 2 and 4, 2010, at 8 p.m. Norman Mackenzie, Conductor; Kiera Duffy, Soprano; Magdalena Wor, Mezzo-soprano; Richard Clement, Tenor; Gerard Sundberg, Bass; Atlanta Symphony Orchestra Chamber Chorus; Norman Mackenzie, Director of Choruses. ANTONIO VIVAL DI (1678-1741): Gloria in D Major, RV 589. GEORGE FRIDERIC HANDEL (1685-1759): Christmas Portion and “Hallelujah!” Chorus from Messiah (1742)