Roger Glover - Butterfly Ball Live Royal Albert Hall - 16.oct.1975 "The Butterfly Ball and the Grasshopper's Feast" is a concept album and rock opera performed in 1974 and 1975. It is based on the children's book of the same name (the album cover is taken from the book by Alan Aldridge). The project was originally by Jon Lord and the production was by Roger Glover, but due to Lord's employment with Deep Purple, Glover took over the entire project. Using his connections, he was able to bring some