Opera Memphis production of Verdi s The Masked Ball opens tonight at The Orpheum. Tonight s Exchange Club Family Center Gala and Auction at the University of Memphis Holiday Inn features music by Joyce Cobb and the Cool Heat Band and the Memphis Vocal Arts Ensemble; honorary chairs are County Mayor A C Wharton and his wife Ruby. There s a Viva L American Deathray Music CD-Release Party with The Pelicans at The Lounge tonight. The Gamble Brother Band is playing at the Full Moon Club. And The Coach & Four, The Duration, and The Post are playing at Young Avenue Deli.