Concert Artists of Baltimore celebrates its silver anniversary season with “Through the Looking Glass,” a benefit gala this Saturday night at the Engineers Club. Black tie is optional, costumes are encouraged, and you might want to check out the photo gallery at CAB’s fabulous site for some ideas. VIP tickets are sold out, but general admission still promises “a decadent evening sampling fine foods, wine, beer, and select cocktails.” Add in an oyster bar, cheese bar, silent and live auctions, and live music, and you’re in for a memorable evening. You’ll also be supporting a premier professional orchestra and chorus that have, over the years, raised the bar for such groups in our area. Hats off to Maestro Polochick for a job well done.