A poem written for children in 1802 would not have been the most obvious subject for Deep Purple bassist Roger Glover for tackle, but that's precisely what he did in 1974 with The Butterfly Ball and the Grasshopper's Feast. Glover wrote, produced, and played on the pop/rock opera concept album which yielded the hit "Love Is All," sung by Ronnie James Dio. Now, that original album has been expanded to 3 CDs for a new box set from Cherry Red's newly-reactivated Purple Records imprint. In