Minnesota Opera’s Popup Plan Arts Music Opera by Basil Considine - September 15, 2015March 11, 2017 Popup events are all the range now, and Minnesota Opera has decided to get into the game in a big way. Starting on September 19, MNOpera is sending its musicians out for free daily performances around town in the build-up to its season opener. The promotion, succinctly styled 7 Days of