Hollandaise sauce One of his categories was "allemande", which was a stock-based sauce using egg and lemon juice. Escoffier replaced "allemande" with "hollandaise" in his list of the five mother sauces of haute cuisine. While many believe that a true hollandaise sauce should only contain the basic ingredients of eggs, butter and lemon, Prosper Montagne suggested using either a white wine or vinegar reduction, similar to a Béarnaise sauce, to help improve the taste. In English, the name "Dutch sauce" was common through the nineteenth century, but was largely displaced by "hollandaise" in the twentieth. As in other egg emulsion sauces, like
French classical music the twentieth-century, composers took many different paths. Some composers looked backwards to the light, elegant Classical works, with the Neoclassicism of the Russian-French composer Stravinsky. Austro-German composers such as Schoenberg and Berg and used a tortured, dramatic style called Expressionism. The French composer Boulez abandoned the entire tonal (key-centered) tradition of Western music with a style called Serialism. Other composers explored electronic music (Stockhausen); chance-based or random (aleatoric) music and indeterminacy (Cage); and minimalism (Reich, Glass). French classical music French classical music began with the sacred music of the Roman Catholic Church, with written records predating the reign of Charlemagne.