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 movement, which emerged in reaction to the first movement; the beginnings of Romanticism, which exalted the role of emotion in art and life. In common with a similar movement in England at the same time, the writers of 18th century France were critical, skeptical and innovative. Their lasting contributions were the ideas of liberty, toleration, humanitarianism, equality, and progress, which became the ideals of modern western democracy. The 18th century saw the gradual weakening of the absolute monarchy constructed by Louis XIV. Its power slipped away during the Regency of Philippe d'Orléans, (1715–1723) and the long regime of King Louis