Conductor Marta McCarthy and the University of Guelph Choirs present Messengers of Grace: Angels In Song. Musical offerings: Magnificat by Gabrieli, Gospel Magnificat by Patti Drennan, Alleluia by Whitacre, Haleluya by Glick ... and much more! General admission $15. Students and seniors $10. Basilica of Our Lady Immaculate, 28 Norfolk St., Guelph. Doors open at