L'estro armonico National Library of Wales in Aberystwyth. The 1797 Encyclopædia Britannica records that the fifth concerto was also played on an Irish variant of Benjamin Franklin's celebrated invention, the glass harmonica. Under the entry for "Harmonica" or "Armonica", a 35-glass harmonica is described, about which its inventor, the Dublin physician Edward Cullen, writes: There were numerous arrangements for keyboard instruments in the eighteenth century, as described in the next section. One surviving eighteenth century transcription of Op.3, No.3 has been interpreted as an arrangement for glockenspiel. Themes from movements in the concertos were borrowed by other composers for vocal works: the
18th-century French literature the originality and importance of their ideas and for their literary talent; writers such as Voltaire, Rousseau, Montesquieu, Diderot and Beaumarchais, whose ideas are still quoted today. They used their novels and plays as weapons which profoundly changed their society, while expressing their own personalities and feelings. Thanks largely to these writers, in the 18th century French became the language of culture, political and social reform all across Europe, and as far away as America and Russia. 18th-century French literature 18th-century French literature is French literature written between 1715, the year of the death of King Louis XIV of France,