an Entity references as follows:
Rockford's Rock Opera is an ecological musical story created by Matthew Sweetapple, Steve Punt and Elaine Sweetapple. It was first released on the Internet and also as a three-album set by Sweetapple in 2010. In addition, Rockford's Rock Opera's ecological messages and content have led to cooperative links with environmental organisations and charities including the WWF, Buglife the BGCI and the Open University.