Baritones took roughly the range we know today at the beginning of the 18th century, but they were still lumped in with their bass colleagues until well into the 19th century. Indeed, many operatic works of the 18th century have roles marked as bass that in reality are low baritone roles (or bass-baritone parts in modern parlance). Examples of this are to be found, for instance, in the operas and oratorios of George Frideric Handel. The greatest and most enduring parts for baritones in 18th-century operatic music were composed by Wolfgang Amadeus Mozart. They include Count Almaviva in The Marriage of Figaro, Guglielmo in Così fan tutte, Papageno in The Magic Flute and the lead in Don Giovanni