Once upon a time there was a tiny sea snail that went on a great adventure with a grey-blue humpback whale. So begins the online children’s performance the Snail and the Whale, inspired by Julia Donaldson and Axel Scheffler’s picture book of the same name. See the free 55-minute play, which features music and storytelling for ages four and older, on March 13 and 14. Register for tickets at lutherburbankcenter.org/event/snail-whale.