Okay, opera fans, grab a golf pencil, dust off your pocket notebook and dare to think small. Really small. It's time for the annual #Operaplot competition on Twitter. What's the objective of the contest, you ask? Well, imagine your favorite opera. It's probably longer than the toes of Sasquatch. It's likely to be bigger than a bread box. It's probably over the top and off the hook. Now, distill all that into 140 characters à la Twitter-speak. I guess you could say it's about bringing opera down to size. This year's contest runs April 11-15. Watch for details on The Omniscient Mussel blog. Get ready for some big, I mean, small, fun.