No one has described Pergolesi"s vocal works more splendidly and with more understanding than the philosopher and pedagogue Jean-Jacques Rousseau, author of the Dictionnaire de musique that was extremely widespread in the 19th century, when he wrote: "Here everything contributes to deepening the effect of the text: the harmony serves only to shape it more forcefully, the accompaniment embellishes it without distorting it. In a word, the whole work of art simultaneously communicates one melody to the ear and only one idea to the mind." This CD offers 3 Masterpieces recorded by the long time Duo Regina Klepper and Martina Borst, accompanied by the Bamberg String Quartet.