It is based on the legends of Don Juan , a fictional libertine and seducer, by Spanish writer Tirso de Molina. Mozart entered the work into his catalogue as an opera buffa. Although sometimes classified as comic, it blends comedy, melodrama and supernatural elements. Don Giovanni is generally regarded as one of Mozart's supreme achievements and one of the greatest operas of all time, and it has proved a fruitful subject for writers and philosophers.
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Neon lighting consists of brightly glowing, electrified glass tubes or bulbs that contain rarefied neon or other gases. Neon lights are a type of cold cathode gas-discharge light. A neon tube is a sealed glass tube with a metal electrode at each end, filled with one of a number of gases at low pressure. A high potential of several thousand volts applied to the electrodes ionizes the gas in the tube, causing it to emit colored light. The color of the light depends on the gas in the tube.