The greatest theatrical, literary, and musical works are magnetic - they continually attract reinterpretation and modernization. Mozart's 220-year-old "Don Giovanni" has been updated with bra-and-panty-clad choristers, Shakespeare's 400-year-old "A Midsummer Night's Dream" with rock 'n' roll. Aristophanes's plays have been slangified to hell and back, and Dante's "Commedia" has turned up in every literary style from terza rima to no rima at all.